Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1164 insertions, 0 deletions

diff --git a/dom/base/nsPIDOMWindow.h b/dom/base/nsPIDOMWindow.h
new file mode 100644
index 0000000000..026dcfcad0
--- /dev/null
+++ b/dom/base/nsPIDOMWindow.h
@@ -0,0 +1,1164 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsPIDOMWindow_h__
+#define nsPIDOMWindow_h__
+
+#include "nsIDOMWindow.h"
+#include "mozIDOMWindow.h"
+
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+#include "Units.h"
+#include "mozilla/dom/EventTarget.h"
+#include "mozilla/EventForwards.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/TaskCategory.h"
+#include "js/TypeDecls.h"
+#include "nsRefPtrHashtable.h"
+#include "nsILoadInfo.h"
+
+// Only fired for inner windows.
+#define DOM_WINDOW_DESTROYED_TOPIC "dom-window-destroyed"
+#define DOM_WINDOW_FROZEN_TOPIC "dom-window-frozen"
+#define DOM_WINDOW_THAWED_TOPIC "dom-window-thawed"
+
+class nsDOMOfflineResourceList;
+class nsGlobalWindowInner;
+class nsGlobalWindowOuter;
+class nsIArray;
+class nsIBaseWindow;
+class nsIChannel;
+class nsIContent;
+class nsIContentSecurityPolicy;
+class nsICSSDeclaration;
+class nsIDocShell;
+class nsIDocShellTreeOwner;
+class nsDocShellLoadState;
+class nsIPrincipal;
+class nsIRunnable;
+class nsIScriptTimeoutHandler;
+class nsISerialEventTarget;
+class nsIURI;
+class nsIWebBrowserChrome;
+class nsPIDOMWindowInner;
+class nsPIDOMWindowOuter;
+class nsPIWindowRoot;
+
+using SuspendTypes = uint32_t;
+
+namespace mozilla::dom {
+class AudioContext;
+class BrowsingContext;
+class BrowsingContextGroup;
+class ClientInfo;
+class ClientState;
+class ContentFrameMessageManager;
+class DocGroup;
+class Document;
+class Element;
+class Location;
+class MediaDevices;
+class MediaKeys;
+class Navigator;
+class Performance;
+class Selection;
+class ServiceWorker;
+class ServiceWorkerDescriptor;
+class Timeout;
+class TimeoutManager;
+class WindowContext;
+class WindowGlobalChild;
+class CustomElementRegistry;
+enum class CallerType : uint32_t;
+}  // namespace mozilla::dom
+
+enum class FullscreenReason {
+  // Toggling the fullscreen mode requires trusted context.
+  ForFullscreenMode,
+  // Fullscreen API is the API provided to untrusted content.
+  ForFullscreenAPI,
+  // This reason can only be used with exiting fullscreen.
+  // It is otherwise identical to eForFullscreenAPI except it would
+  // suppress the fullscreen transition.
+  ForForceExitFullscreen
+};
+
+// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
+#define NS_PIDOMWINDOWINNER_IID                      \
+  {                                                  \
+    0x775dabc9, 0x8f43, 0x4277, {                    \
+      0x9a, 0xdb, 0xf1, 0x99, 0x0d, 0x77, 0xcf, 0xfb \
+    }                                                \
+  }
+
+// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
+#define NS_PIDOMWINDOWOUTER_IID                      \
+  {                                                  \
+    0x769693d4, 0xb009, 0x4fe2, {                    \
+      0xaf, 0x18, 0x7d, 0xc8, 0xdf, 0x74, 0x96, 0xdf \
+    }                                                \
+  }
+
+class nsPIDOMWindowInner : public mozIDOMWindow {
+ protected:
+  using Document = mozilla::dom::Document;
+  friend nsGlobalWindowInner;
+  friend nsGlobalWindowOuter;
+
+  nsPIDOMWindowInner(nsPIDOMWindowOuter* aOuterWindow,
+                     mozilla::dom::WindowGlobalChild* aActor);
+
+  ~nsPIDOMWindowInner();
+
+ public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWINNER_IID)
+
+  nsIGlobalObject* AsGlobal();
+  const nsIGlobalObject* AsGlobal() const;
+
+  nsPIDOMWindowOuter* GetOuterWindow() const { return mOuterWindow; }
+
+  static nsPIDOMWindowInner* From(mozIDOMWindow* aFrom) {
+    return static_cast<nsPIDOMWindowInner*>(aFrom);
+  }
+
+  NS_IMPL_FROMEVENTTARGET_HELPER_WITH_GETTER(nsPIDOMWindowInner,
+                                             GetAsWindowInner())
+
+  // Returns true if this object is the currently-active inner window for its
+  // BrowsingContext.
+  bool IsCurrentInnerWindow() const;
+
+  // Returns true if the document of this window is the active document.  This
+  // is identical to IsCurrentInnerWindow() now that document.open() no longer
+  // creates new inner windows for the document it is called on.
+  inline bool HasActiveDocument();
+
+  // Return true if this object is the currently-active inner window for its
+  // BrowsingContext and any container document is also fully active.
+  // For https://html.spec.whatwg.org/multipage/browsers.html#fully-active
+  bool IsFullyActive() const;
+
+  // Returns true if this window is the same as mTopInnerWindow
+  inline bool IsTopInnerWindow() const;
+
+  // Returns true if this was the current window for its BrowsingContext when it
+  // was discarded.
+  virtual bool WasCurrentInnerWindow() const = 0;
+
+  // Check whether a document is currently loading (really checks if the
+  // load event has completed).  May not be reset to false on errors.
+  inline bool IsLoading() const;
+  inline bool IsHandlingResizeEvent() const;
+
+  // Note: not related to IsLoading.  Set to false if there's an error, etc.
+  virtual void SetActiveLoadingState(bool aIsActiveLoading) = 0;
+
+  bool AddAudioContext(mozilla::dom::AudioContext* aAudioContext);
+  void RemoveAudioContext(mozilla::dom::AudioContext* aAudioContext);
+  void MuteAudioContexts();
+  void UnmuteAudioContexts();
+
+  void SetAudioCapture(bool aCapture);
+
+  /**
+   * Associate this inner window with a MediaKeys instance.
+   */
+  void AddMediaKeysInstance(mozilla::dom::MediaKeys* aMediaKeysInstance);
+
+  /**
+   * Remove an association between this inner window and a MediaKeys instance.
+   */
+  void RemoveMediaKeysInstance(mozilla::dom::MediaKeys* aMediaKeysInstance);
+
+  /**
+   * Return if any MediaKeys instances are associated with this window.
+   */
+  bool HasActiveMediaKeysInstance();
+
+  mozilla::dom::Performance* GetPerformance();
+
+  void QueuePerformanceNavigationTiming();
+
+  bool HasMutationListeners(uint32_t aMutationEventType) const {
+    if (!mOuterWindow) {
+      NS_ERROR("HasMutationListeners() called on orphan inner window!");
+
+      return false;
+    }
+
+    return (mMutationBits & aMutationEventType) != 0;
+  }
+
+  void SetMutationListeners(uint32_t aType) {
+    if (!mOuterWindow) {
+      NS_ERROR("HasMutationListeners() called on orphan inner window!");
+
+      return;
+    }
+
+    mMutationBits |= aType;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a mouseenter/leave event listener.
+   */
+  bool HasMouseEnterLeaveEventListeners() const {
+    return mMayHaveMouseEnterLeaveEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a mouseenter/leave event listener.
+   */
+  void SetHasMouseEnterLeaveEventListeners() {
+    mMayHaveMouseEnterLeaveEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a Pointerenter/leave event listener.
+   */
+  bool HasPointerEnterLeaveEventListeners() const {
+    return mMayHavePointerEnterLeaveEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a Pointerenter/leave event listener.
+   */
+  void SetHasPointerEnterLeaveEventListeners() {
+    mMayHavePointerEnterLeaveEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a beforeinput event listener.
+   * Returing false may be wrong if some nodes have come from another document
+   * with `Document.adoptNode`.
+   */
+  bool HasBeforeInputEventListenersForTelemetry() const {
+    return mMayHaveBeforeInputEventListenerForTelemetry;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a beforeinput event listener.
+   */
+  void SetHasBeforeInputEventListenersForTelemetry() {
+    mMayHaveBeforeInputEventListenerForTelemetry = true;
+  }
+
+  /**
+   * Call this to check whether some node (The document, or content in the
+   * document) has been observed by web apps with a mutation observer.
+   * (i.e., `MutationObserver.observe()` called by chrome script and addon's
+   * script does not make this returns true).
+   * Returing false may be wrong if some nodes have come from another document
+   * with `Document.adoptNode`.
+   */
+  bool MutationObserverHasObservedNodeForTelemetry() const {
+    return mMutationObserverHasObservedNodeForTelemetry;
+  }
+
+  /**
+   * Call this to indicate that some node (The document, or content in the
+   * document) is observed by web apps with a mutation observer.
+   */
+  void SetMutationObserverHasObservedNodeForTelemetry() {
+    mMutationObserverHasObservedNodeForTelemetry = true;
+  }
+
+  // Sets the event for window.event. Does NOT take ownership, so
+  // the caller is responsible for clearing the event before the
+  // event gets deallocated. Pass nullptr to set window.event to
+  // undefined. Returns the previous value.
+  mozilla::dom::Event* SetEvent(mozilla::dom::Event* aEvent) {
+    mozilla::dom::Event* old = mEvent;
+    mEvent = aEvent;
+    return old;
+  }
+
+  /**
+   * Check whether this window is a secure context.
+   */
+  bool IsSecureContext() const;
+  bool IsSecureContextIfOpenerIgnored() const;
+
+  // Calling suspend should prevent any asynchronous tasks from
+  // executing javascript for this window.  This means setTimeout,
+  // requestAnimationFrame, and events should not be fired. Suspending
+  // a window maybe also suspends its children.  Workers may
+  // continue to perform computations in the background.  A window
+  // can have Suspend() called multiple times and will only resume after
+  // a matching number of Resume() calls.
+  void Suspend(bool aIncludeSubWindows = true);
+  void Resume(bool aIncludeSubWindows = true);
+
+  // Whether or not this window was suspended by the BrowserContextGroup
+  bool GetWasSuspendedByGroup() const { return mWasSuspendedByGroup; }
+  void SetWasSuspendedByGroup(bool aSuspended) {
+    mWasSuspendedByGroup = aSuspended;
+  }
+
+  // Apply the parent window's suspend, freeze, and modal state to the current
+  // window.
+  void SyncStateFromParentWindow();
+
+  /**
+   * Increment active peer connection count.
+   */
+  void AddPeerConnection();
+
+  /**
+   * Decrement active peer connection count.
+   */
+  void RemovePeerConnection();
+
+  /**
+   * Check whether the active peer connection count is non-zero.
+   */
+  bool HasActivePeerConnections();
+
+  bool IsPlayingAudio();
+
+  bool IsDocumentLoaded() const;
+
+  mozilla::dom::TimeoutManager& TimeoutManager();
+
+  bool IsRunningTimeout();
+
+  // To cache top inner-window if available after constructed for tab-wised
+  // indexedDB counters.
+  void TryToCacheTopInnerWindow();
+
+  // Increase/Decrease the number of active IndexedDB databases for the
+  // decision making of timeout-throttling.
+  void UpdateActiveIndexedDBDatabaseCount(int32_t aDelta);
+
+  // Return true if there is any active IndexedDB databases which could block
+  // timeout-throttling.
+  bool HasActiveIndexedDBDatabases();
+
+  // Increase/Decrease the number of open WebSockets.
+  void UpdateWebSocketCount(int32_t aDelta);
+
+  // Return true if there are any open WebSockets that could block
+  // timeout-throttling.
+  bool HasOpenWebSockets() const;
+
+  mozilla::Maybe<mozilla::dom::ClientInfo> GetClientInfo() const;
+  mozilla::Maybe<mozilla::dom::ClientState> GetClientState() const;
+  mozilla::Maybe<mozilla::dom::ServiceWorkerDescriptor> GetController() const;
+
+  void SetCsp(nsIContentSecurityPolicy* aCsp);
+  void SetPreloadCsp(nsIContentSecurityPolicy* aPreloadCsp);
+  nsIContentSecurityPolicy* GetCsp();
+
+  void NoteCalledRegisterForServiceWorkerScope(const nsACString& aScope);
+
+  void NoteDOMContentLoaded();
+
+  virtual mozilla::dom::CustomElementRegistry* CustomElements() = 0;
+
+  // XXX: This is called on inner windows
+  virtual nsPIDOMWindowOuter* GetInProcessScriptableTop() = 0;
+  virtual nsPIDOMWindowOuter* GetInProcessScriptableParent() = 0;
+  virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() = 0;
+
+  mozilla::dom::EventTarget* GetChromeEventHandler() const {
+    return mChromeEventHandler;
+  }
+
+  mozilla::dom::EventTarget* GetParentTarget() {
+    if (!mParentTarget) {
+      UpdateParentTarget();
+    }
+    return mParentTarget;
+  }
+
+  virtual void MaybeUpdateTouchState() {}
+
+  Document* GetExtantDoc() const { return mDoc; }
+  nsIURI* GetDocumentURI() const;
+  nsIURI* GetDocBaseURI() const;
+
+  Document* GetDoc() {
+    if (!mDoc) {
+      MaybeCreateDoc();
+    }
+    return mDoc;
+  }
+
+  mozilla::dom::WindowContext* GetWindowContext() const;
+  mozilla::dom::WindowGlobalChild* GetWindowGlobalChild() const {
+    return mWindowGlobalChild;
+  }
+
+  // Removes this inner window from the BFCache, if it is cached, and returns
+  // true if it was.
+  bool RemoveFromBFCacheSync();
+
+  // Determine if the window is suspended or frozen.  Outer windows
+  // will forward this call to the inner window for convenience.  If
+  // there is no inner window then the outer window is considered
+  // suspended and frozen by default.
+  virtual bool IsSuspended() const = 0;
+  virtual bool IsFrozen() const = 0;
+
+  // Fire any DOM notification events related to things that happened while
+  // the window was frozen.
+  virtual nsresult FireDelayedDOMEvents(bool aIncludeSubWindows) = 0;
+
+  /**
+   * Get the docshell in this window.
+   */
+  inline nsIDocShell* GetDocShell() const;
+
+  /**
+   * Get the browsing context in this window.
+   */
+  inline mozilla::dom::BrowsingContext* GetBrowsingContext() const;
+
+  /**
+   * Get the browsing context group this window belongs to.
+   */
+  mozilla::dom::BrowsingContextGroup* GetBrowsingContextGroup() const;
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a paint event listener.
+   */
+  void SetHasPaintEventListeners() { mMayHavePaintEventListener = true; }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a paint event listener.
+   */
+  bool HasPaintEventListeners() { return mMayHavePaintEventListener; }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a touch event listener.
+   */
+  void SetHasTouchEventListeners() {
+    if (!mMayHaveTouchEventListener) {
+      mMayHaveTouchEventListener = true;
+      MaybeUpdateTouchState();
+    }
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a selectionchange event listener.
+   */
+  void SetHasSelectionChangeEventListeners() {
+    mMayHaveSelectionChangeEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a selectionchange event listener.
+   */
+  bool HasSelectionChangeEventListeners() const {
+    return mMayHaveSelectionChangeEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a select event listener of form controls.
+   */
+  void SetHasFormSelectEventListeners() {
+    mMayHaveFormSelectEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a select event listener of form controls.
+   */
+  bool HasFormSelectEventListeners() const {
+    return mMayHaveFormSelectEventListener;
+  }
+
+  /*
+   * Get and set the currently focused element within the document. If
+   * aNeedsFocus is true, then set mNeedsFocus to true to indicate that a
+   * document focus event is needed.
+   *
+   * DO NOT CALL EITHER OF THESE METHODS DIRECTLY. USE THE FOCUS MANAGER
+   * INSTEAD.
+   */
+  mozilla::dom::Element* GetFocusedElement() const {
+    return mFocusedElement.get();
+  }
+
+  virtual void SetFocusedElement(mozilla::dom::Element* aElement,
+                                 uint32_t aFocusMethod = 0,
+                                 bool aNeedsFocus = false) = 0;
+
+  bool UnknownFocusMethodShouldShowOutline() const {
+    return mUnknownFocusMethodShouldShowOutline;
+  }
+
+  /**
+   * Retrieves the method that was used to focus the current node.
+   */
+  virtual uint32_t GetFocusMethod() = 0;
+
+  /*
+   * Tells the window that it now has focus or has lost focus, based on the
+   * state of aFocus. If this method returns true, then the document loaded
+   * in the window has never received a focus event and expects to receive
+   * one. If false is returned, the document has received a focus event before
+   * and should only receive one if the window is being focused.
+   *
+   * aFocusMethod may be set to one of the focus method constants in
+   * nsIFocusManager to indicate how focus was set.
+   */
+  virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) = 0;
+
+  /**
+   * Indicates that the window may now accept a document focus event. This
+   * should be called once a document has been loaded into the window.
+   */
+  virtual void SetReadyForFocus() = 0;
+
+  /**
+   * Whether the focused content within the window should show a focus ring.
+   */
+  virtual bool ShouldShowFocusRing() = 0;
+
+  /**
+   * Indicates that the page in the window has been hidden. This is used to
+   * reset the focus state.
+   */
+  virtual void PageHidden() = 0;
+
+  /**
+   * Instructs this window to asynchronously dispatch a hashchange event.  This
+   * method must be called on an inner window.
+   */
+  virtual nsresult DispatchAsyncHashchange(nsIURI* aOldURI,
+                                           nsIURI* aNewURI) = 0;
+
+  /**
+   * Instructs this window to synchronously dispatch a popState event.
+   */
+  virtual nsresult DispatchSyncPopState() = 0;
+
+  /**
+   * Tell this window that it should listen for sensor changes of the given
+   * type.
+   */
+  virtual void EnableDeviceSensor(uint32_t aType) = 0;
+
+  /**
+   * Tell this window that it should remove itself from sensor change
+   * notifications.
+   */
+  virtual void DisableDeviceSensor(uint32_t aType) = 0;
+
+#if defined(MOZ_WIDGET_ANDROID)
+  virtual void EnableOrientationChangeListener() = 0;
+  virtual void DisableOrientationChangeListener() = 0;
+#endif
+
+  /**
+   * Tell this window that there is an observer for gamepad input
+   *
+   * Inner windows only.
+   */
+  virtual void SetHasGamepadEventListener(bool aHasGamepad = true) = 0;
+
+  /**
+   * Return the window id of this window
+   */
+  uint64_t WindowID() const { return mWindowID; }
+
+  // WebIDL-ish APIs
+  void MarkUncollectableForCCGeneration(uint32_t aGeneration) {
+    mMarkedCCGeneration = aGeneration;
+  }
+
+  uint32_t GetMarkedCCGeneration() { return mMarkedCCGeneration; }
+
+  mozilla::dom::Navigator* Navigator();
+  mozilla::dom::MediaDevices* GetExtantMediaDevices() const;
+  virtual mozilla::dom::Location* Location() = 0;
+
+  virtual nsresult GetControllers(nsIControllers** aControllers) = 0;
+
+  virtual nsresult GetInnerWidth(double* aWidth) = 0;
+  virtual nsresult GetInnerHeight(double* aHeight) = 0;
+
+  virtual already_AddRefed<nsICSSDeclaration> GetComputedStyle(
+      mozilla::dom::Element& aElt, const nsAString& aPseudoElt,
+      mozilla::ErrorResult& aError) = 0;
+
+  virtual nsDOMOfflineResourceList* GetApplicationCache() = 0;
+
+  virtual bool GetFullScreen() = 0;
+
+  virtual nsresult Focus(mozilla::dom::CallerType aCallerType) = 0;
+  virtual nsresult Close() = 0;
+
+  mozilla::dom::DocGroup* GetDocGroup() const;
+  virtual nsISerialEventTarget* EventTargetFor(
+      mozilla::TaskCategory aCategory) const = 0;
+
+  void SaveStorageAccessPermissionGranted();
+
+  bool HasStorageAccessPermissionGranted();
+
+  uint32_t UpdateLockCount(bool aIncrement) {
+    MOZ_ASSERT_IF(!aIncrement, mLockCount > 0);
+    mLockCount += aIncrement ? 1 : -1;
+    return mLockCount;
+  };
+  bool HasActiveLocks() { return mLockCount > 0; }
+
+ protected:
+  void CreatePerformanceObjectIfNeeded();
+
+  // Lazily instantiate an about:blank document if necessary, and if
+  // we have what it takes to do so.
+  void MaybeCreateDoc();
+
+  void SetChromeEventHandlerInternal(
+      mozilla::dom::EventTarget* aChromeEventHandler) {
+    mChromeEventHandler = aChromeEventHandler;
+    // mParentTarget will be set when the next event is dispatched.
+    mParentTarget = nullptr;
+  }
+
+  virtual void UpdateParentTarget() = 0;
+
+  // These two variables are special in that they're set to the same
+  // value on both the outer window and the current inner window. Make
+  // sure you keep them in sync!
+  nsCOMPtr<mozilla::dom::EventTarget> mChromeEventHandler;  // strong
+  RefPtr<Document> mDoc;
+  // Cache the URI when mDoc is cleared.
+  nsCOMPtr<nsIURI> mDocumentURI;  // strong
+  nsCOMPtr<nsIURI> mDocBaseURI;   // strong
+
+  nsCOMPtr<mozilla::dom::EventTarget> mParentTarget;  // strong
+
+  RefPtr<mozilla::dom::Performance> mPerformance;
+  mozilla::UniquePtr<mozilla::dom::TimeoutManager> mTimeoutManager;
+
+  RefPtr<mozilla::dom::Navigator> mNavigator;
+
+  // These variables are only used on inner windows.
+  uint32_t mMutationBits;
+
+  uint32_t mActivePeerConnections = 0;
+
+  bool mIsDocumentLoaded;
+  bool mIsHandlingResizeEvent;
+  bool mMayHavePaintEventListener;
+  bool mMayHaveTouchEventListener;
+  bool mMayHaveSelectionChangeEventListener;
+  bool mMayHaveFormSelectEventListener;
+  bool mMayHaveMouseEnterLeaveEventListener;
+  bool mMayHavePointerEnterLeaveEventListener;
+  // Only used for telemetry probes.  This may be wrong if some nodes have
+  // come from another document with `Document.adoptNode`.
+  bool mMayHaveBeforeInputEventListenerForTelemetry;
+  bool mMutationObserverHasObservedNodeForTelemetry;
+
+  // Our inner window's outer window.
+  nsCOMPtr<nsPIDOMWindowOuter> mOuterWindow;
+
+  // The element within the document that is currently focused when this
+  // window is active.
+  RefPtr<mozilla::dom::Element> mFocusedElement;
+
+  // The AudioContexts created for the current document, if any.
+  nsTArray<mozilla::dom::AudioContext*> mAudioContexts;  // Weak
+
+  // Instances of MediaKeys created in this inner window. Storing these allows
+  // us to shutdown MediaKeys when an inner windows is destroyed. We can also
+  // use the presence of MediaKeys to assess if a window has EME activity.
+  nsTArray<mozilla::dom::MediaKeys*> mMediaKeysInstances;  // Weak
+
+  RefPtr<mozilla::dom::BrowsingContext> mBrowsingContext;
+
+  // A unique (as long as our 64-bit counter doesn't roll over) id for
+  // this window.
+  uint64_t mWindowID;
+
+  // Set to true once we've sent the (chrome|content)-document-global-created
+  // notification.
+  bool mHasNotifiedGlobalCreated;
+
+  // Whether when focused via an "unknown" focus method, we should show outlines
+  // by default or not. The initial value of this is true (so as to show
+  // outlines for stuff like html autofocus, or initial programmatic focus
+  // without any other user interaction).
+  bool mUnknownFocusMethodShouldShowOutline = true;
+
+  uint32_t mMarkedCCGeneration;
+
+  // mTopInnerWindow is used for tab-wise check by timeout throttling. It could
+  // be null.
+  nsCOMPtr<nsPIDOMWindowInner> mTopInnerWindow;
+
+  // The evidence that we have tried to cache mTopInnerWindow only once from
+  // SetNewDocument(). Note: We need this extra flag because mTopInnerWindow
+  // could be null and we don't want it to be set multiple times.
+  bool mHasTriedToCacheTopInnerWindow;
+
+  // The number of active IndexedDB databases.
+  uint32_t mNumOfIndexedDBDatabases;
+
+  // The number of open WebSockets.
+  uint32_t mNumOfOpenWebSockets;
+
+  // The event dispatch code sets and unsets this while keeping
+  // the event object alive.
+  mozilla::dom::Event* mEvent;
+
+  // A boolean flag indicating whether storage access is granted for the
+  // current window. These are also set as permissions, but it could happen
+  // that we need to access them synchronously in this context, and for
+  // this, we need a copy here.
+  bool mStorageAccessPermissionGranted;
+
+  // The WindowGlobalChild actor for this window.
+  //
+  // This will be non-null during the full lifetime of the window, initialized
+  // during SetNewDocument, and cleared during FreeInnerObjects.
+  RefPtr<mozilla::dom::WindowGlobalChild> mWindowGlobalChild;
+
+  bool mWasSuspendedByGroup;
+
+  /**
+   * Count of the number of active LockRequest objects, including ones from
+   * workers.
+   */
+  uint32_t mLockCount = 0;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowInner, NS_PIDOMWINDOWINNER_IID)
+
+class nsPIDOMWindowOuter : public mozIDOMWindowProxy {
+ protected:
+  using Document = mozilla::dom::Document;
+
+  explicit nsPIDOMWindowOuter(uint64_t aWindowID);
+
+  ~nsPIDOMWindowOuter();
+
+  void NotifyResumingDelayedMedia();
+
+ public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWOUTER_IID)
+
+  NS_IMPL_FROMEVENTTARGET_HELPER_WITH_GETTER(nsPIDOMWindowOuter,
+                                             GetAsWindowOuter())
+
+  static nsPIDOMWindowOuter* From(mozIDOMWindowProxy* aFrom) {
+    return static_cast<nsPIDOMWindowOuter*>(aFrom);
+  }
+
+  // Given an inner window, return its outer if the inner is the current inner.
+  // Otherwise (argument null or not an inner or not current) return null.
+  static nsPIDOMWindowOuter* GetFromCurrentInner(nsPIDOMWindowInner* aInner);
+
+  // Check whether a document is currently loading
+  inline bool IsLoading() const;
+  inline bool IsHandlingResizeEvent() const;
+
+  nsPIDOMWindowInner* GetCurrentInnerWindow() const { return mInnerWindow; }
+
+  nsPIDOMWindowInner* EnsureInnerWindow() {
+    // GetDoc forces inner window creation if there isn't one already
+    GetDoc();
+    return GetCurrentInnerWindow();
+  }
+
+  bool IsRootOuterWindow() { return mIsRootOuterWindow; }
+
+  // Internal getter/setter for the frame element, this version of the
+  // getter crosses chrome boundaries whereas the public scriptable
+  // one doesn't for security reasons.
+  mozilla::dom::Element* GetFrameElementInternal() const;
+  void SetFrameElementInternal(mozilla::dom::Element* aFrameElement);
+
+  bool IsBackground() { return mIsBackground; }
+
+  // Audio API
+  bool GetAudioMuted() const;
+
+  // No longer to delay media from starting for this window.
+  void ActivateMediaComponents();
+  bool ShouldDelayMediaFromStart() const;
+
+  void RefreshMediaElementsVolume();
+
+  virtual nsPIDOMWindowOuter* GetPrivateRoot() = 0;
+
+  /**
+   * |top| gets the root of the window hierarchy.
+   *
+   * This function does not cross chrome-content boundaries, so if this
+   * window's parent is of a different type, |top| will return this window.
+   *
+   * When script reads the top property, we run GetInProcessScriptableTop,
+   * which will not cross an <iframe mozbrowser> boundary.
+   *
+   * In contrast, C++ calls to GetTop are forwarded to GetRealTop, which
+   * ignores <iframe mozbrowser> boundaries.
+   */
+
+  virtual already_AddRefed<nsPIDOMWindowOuter>
+  GetInProcessTop() = 0;  // Outer only
+  virtual already_AddRefed<nsPIDOMWindowOuter> GetInProcessParent() = 0;
+  virtual nsPIDOMWindowOuter* GetInProcessScriptableTop() = 0;
+  virtual nsPIDOMWindowOuter* GetInProcessScriptableParent() = 0;
+  virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() = 0;
+
+  /**
+   * Behaves identically to GetInProcessScriptableParent except that it
+   * returns null if GetInProcessScriptableParent would return this window.
+   */
+  virtual nsPIDOMWindowOuter* GetInProcessScriptableParentOrNull() = 0;
+
+  virtual void SetIsBackground(bool aIsBackground) = 0;
+
+  mozilla::dom::EventTarget* GetChromeEventHandler() const {
+    return mChromeEventHandler;
+  }
+
+  virtual void SetChromeEventHandler(
+      mozilla::dom::EventTarget* aChromeEventHandler) = 0;
+
+  mozilla::dom::EventTarget* GetParentTarget() {
+    if (!mParentTarget) {
+      UpdateParentTarget();
+    }
+    return mParentTarget;
+  }
+
+  mozilla::dom::ContentFrameMessageManager* GetMessageManager() {
+    // We maintain our mMessageManager state alongside mParentTarget.
+    if (!mParentTarget) {
+      UpdateParentTarget();
+    }
+    return mMessageManager;
+  }
+
+  Document* GetExtantDoc() const { return mDoc; }
+  nsIURI* GetDocumentURI() const;
+
+  Document* GetDoc() {
+    if (!mDoc) {
+      MaybeCreateDoc();
+    }
+    return mDoc;
+  }
+
+  // Set the window up with an about:blank document with the given principal and
+  // potentially a CSP and a COEP.
+  virtual void SetInitialPrincipal(
+      nsIPrincipal* aNewWindowPrincipal, nsIContentSecurityPolicy* aCSP,
+      const mozilla::Maybe<nsILoadInfo::CrossOriginEmbedderPolicy>& aCoep) = 0;
+
+  // Returns an object containing the window's state.  This also suspends
+  // all running timeouts in the window.
+  virtual already_AddRefed<nsISupports> SaveWindowState() = 0;
+
+  // Restore the window state from aState.
+  virtual nsresult RestoreWindowState(nsISupports* aState) = 0;
+
+  // Determine if the window is suspended or frozen.  Outer windows
+  // will forward this call to the inner window for convenience.  If
+  // there is no inner window then the outer window is considered
+  // suspended and frozen by default.
+  virtual bool IsSuspended() const = 0;
+  virtual bool IsFrozen() const = 0;
+
+  // Fire any DOM notification events related to things that happened while
+  // the window was frozen.
+  virtual nsresult FireDelayedDOMEvents(bool aIncludeSubWindows) = 0;
+
+  /**
+   * Get the docshell in this window.
+   */
+  inline nsIDocShell* GetDocShell() const;
+
+  /**
+   * Get the browsing context in this window.
+   */
+  inline mozilla::dom::BrowsingContext* GetBrowsingContext() const;
+
+  /**
+   * Get the browsing context group this window belongs to.
+   */
+  mozilla::dom::BrowsingContextGroup* GetBrowsingContextGroup() const;
+
+  /**
+   * Set a new document in the window. Calling this method will in most cases
+   * create a new inner window. This may be called with a pointer to the current
+   * document, in that case the document remains unchanged, but a new inner
+   * window will be created.
+   *
+   * aDocument must not be null.
+   */
+  virtual nsresult SetNewDocument(
+      Document* aDocument, nsISupports* aState, bool aForceReuseInnerWindow,
+      mozilla::dom::WindowGlobalChild* aActor = nullptr) = 0;
+
+  /**
+   * Ensure the size and position of this window are up-to-date by doing
+   * a layout flush in the parent (which will in turn, do a layout flush
+   * in its parent, etc.).
+   */
+  virtual void EnsureSizeAndPositionUpToDate() = 0;
+
+  /**
+   * Suppresses/unsuppresses user initiated event handling in window's document
+   * and all in-process descendant documents.
+   */
+  virtual void SuppressEventHandling() = 0;
+  virtual void UnsuppressEventHandling() = 0;
+
+  /**
+   * Callback for notifying a window about a modal dialog being
+   * opened/closed with the window as a parent.
+   *
+   * If any script can run between the enter and leave modal states, and the
+   * window isn't top, the LeaveModalState() should be called on the window
+   * returned by EnterModalState().
+   */
+  virtual nsPIDOMWindowOuter* EnterModalState() = 0;
+  virtual void LeaveModalState() = 0;
+
+  virtual bool CanClose() = 0;
+  virtual void ForceClose() = 0;
+
+  /**
+   * Moves the top-level window into fullscreen mode if aIsFullScreen is true,
+   * otherwise exits fullscreen.
+   */
+  virtual nsresult SetFullscreenInternal(FullscreenReason aReason,
+                                         bool aIsFullscreen) = 0;
+  virtual void FullscreenWillChange(bool aIsFullscreen) = 0;
+  /**
+   * This function should be called when the fullscreen state is flipped.
+   * If no widget is involved the fullscreen change, this method is called
+   * by SetFullscreenInternal, otherwise, it is called when the widget
+   * finishes its change to or from fullscreen.
+   *
+   * @param aIsFullscreen indicates whether the widget is in fullscreen.
+   */
+  virtual void FinishFullscreenChange(bool aIsFullscreen) = 0;
+
+  virtual void ForceFullScreenInWidget() = 0;
+
+  virtual void MacFullscreenMenubarOverlapChanged(
+      mozilla::DesktopCoord aOverlapAmount) = 0;
+
+  // XXX: These focus methods all forward to the inner, could we change
+  // consumers to call these on the inner directly?
+
+  /*
+   * Get and set the currently focused element within the document. If
+   * aNeedsFocus is true, then set mNeedsFocus to true to indicate that a
+   * document focus event is needed.
+   *
+   * DO NOT CALL EITHER OF THESE METHODS DIRECTLY. USE THE FOCUS MANAGER
+   * INSTEAD.
+   */
+  inline mozilla::dom::Element* GetFocusedElement() const;
+
+  virtual void SetFocusedElement(mozilla::dom::Element* aElement,
+                                 uint32_t aFocusMethod = 0,
+                                 bool aNeedsFocus = false) = 0;
+  /**
+   * Get whether a focused element focused by unknown reasons (like script
+   * focus) should match the :focus-visible pseudo-class.
+   */
+  bool UnknownFocusMethodShouldShowOutline() const;
+
+  /**
+   * Retrieves the method that was used to focus the current node.
+   */
+  virtual uint32_t GetFocusMethod() = 0;
+
+  /*
+   * Tells the window that it now has focus or has lost focus, based on the
+   * state of aFocus. If this method returns true, then the document loaded
+   * in the window has never received a focus event and expects to receive
+   * one. If false is returned, the document has received a focus event before
+   * and should only receive one if the window is being focused.
+   *
+   * aFocusMethod may be set to one of the focus method constants in
+   * nsIFocusManager to indicate how focus was set.
+   */
+  virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) = 0;
+
+  /**
+   * Indicates that the window may now accept a document focus event. This
+   * should be called once a document has been loaded into the window.
+   */
+  virtual void SetReadyForFocus() = 0;
+
+  /**
+   * Whether the focused content within the window should show a focus ring.
+   */
+  virtual bool ShouldShowFocusRing() = 0;
+
+  /**
+   * Indicates that the page in the window has been hidden. This is used to
+   * reset the focus state.
+   */
+  virtual void PageHidden() = 0;
+
+  /**
+   * Return the window id of this window
+   */
+  uint64_t WindowID() const { return mWindowID; }
+
+  /**
+   * Dispatch a custom event with name aEventName targeted at this window.
+   * Returns whether the default action should be performed.
+   *
+   * Outer windows only.
+   */
+  virtual bool DispatchCustomEvent(
+      const nsAString& aEventName,
+      mozilla::ChromeOnlyDispatch aChromeOnlyDispatch =
+          mozilla::ChromeOnlyDispatch::eNo) = 0;
+
+  /**
+   * Like nsIDOMWindow::Open, except that we don't navigate to the given URL.
+   *
+   * Outer windows only.
+   */
+  virtual nsresult OpenNoNavigate(const nsAString& aUrl, const nsAString& aName,
+                                  const nsAString& aOptions,
+                                  mozilla::dom::BrowsingContext** _retval) = 0;
+
+  /**
+   * Fire a popup blocked event on the document.
+   */
+  virtual void FirePopupBlockedEvent(Document* aDoc, nsIURI* aPopupURI,
+                                     const nsAString& aPopupWindowName,
+                                     const nsAString& aPopupWindowFeatures) = 0;
+
+  // WebIDL-ish APIs
+  void MarkUncollectableForCCGeneration(uint32_t aGeneration) {
+    mMarkedCCGeneration = aGeneration;
+  }
+
+  uint32_t GetMarkedCCGeneration() { return mMarkedCCGeneration; }
+
+  // XXX(nika): These feel like they should be inner window only, but they're
+  // called on the outer window.
+  virtual mozilla::dom::Navigator* GetNavigator() = 0;
+  virtual mozilla::dom::Location* GetLocation() = 0;
+
+  virtual nsresult GetPrompter(nsIPrompt** aPrompt) = 0;
+  virtual nsresult GetControllers(nsIControllers** aControllers) = 0;
+  virtual already_AddRefed<mozilla::dom::Selection> GetSelection() = 0;
+  virtual mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder>
+  GetOpener() = 0;
+
+  // aLoadState will be passed on through to the windowwatcher.
+  // aForceNoOpener will act just like a "noopener" feature in aOptions except
+  //                will not affect any other window features.
+  virtual nsresult Open(const nsAString& aUrl, const nsAString& aName,
+                        const nsAString& aOptions,
+                        nsDocShellLoadState* aLoadState, bool aForceNoOpener,
+                        mozilla::dom::BrowsingContext** _retval) = 0;
+  virtual nsresult OpenDialog(const nsAString& aUrl, const nsAString& aName,
+                              const nsAString& aOptions,
+                              nsISupports* aExtraArgument,
+                              mozilla::dom::BrowsingContext** _retval) = 0;
+
+  virtual nsresult GetInnerWidth(double* aWidth) = 0;
+  virtual nsresult GetInnerHeight(double* aHeight) = 0;
+
+  virtual mozilla::dom::Element* GetFrameElement() = 0;
+
+  virtual bool Closed() = 0;
+  virtual bool GetFullScreen() = 0;
+  virtual nsresult SetFullScreen(bool aFullscreen) = 0;
+
+  virtual nsresult Focus(mozilla::dom::CallerType aCallerType) = 0;
+  virtual nsresult Close() = 0;
+
+  virtual nsresult MoveBy(int32_t aXDif, int32_t aYDif) = 0;
+
+  virtual void UpdateCommands(const nsAString& anAction,
+                              mozilla::dom::Selection* aSel,
+                              int16_t aReason) = 0;
+
+  mozilla::dom::DocGroup* GetDocGroup() const;
+  virtual nsISerialEventTarget* EventTargetFor(
+      mozilla::TaskCategory aCategory) const = 0;
+
+  already_AddRefed<nsIDocShellTreeOwner> GetTreeOwner();
+  already_AddRefed<nsIBaseWindow> GetTreeOwnerWindow();
+  already_AddRefed<nsIWebBrowserChrome> GetWebBrowserChrome();
+
+ protected:
+  // Lazily instantiate an about:blank document if necessary, and if
+  // we have what it takes to do so.
+  void MaybeCreateDoc();
+
+  void SetChromeEventHandlerInternal(
+      mozilla::dom::EventTarget* aChromeEventHandler);
+
+  virtual void UpdateParentTarget() = 0;
+
+  // These two variables are special in that they're set to the same
+  // value on both the outer window and the current inner window. Make
+  // sure you keep them in sync!
+  nsCOMPtr<mozilla::dom::EventTarget> mChromeEventHandler;  // strong
+  RefPtr<Document> mDoc;
+  // Cache the URI when mDoc is cleared.
+  nsCOMPtr<nsIURI> mDocumentURI;  // strong
+
+  nsCOMPtr<mozilla::dom::EventTarget> mParentTarget;                 // strong
+  RefPtr<mozilla::dom::ContentFrameMessageManager> mMessageManager;  // strong
+
+  nsCOMPtr<mozilla::dom::Element> mFrameElement;
+
+  // These references are used by nsGlobalWindow.
+  nsCOMPtr<nsIDocShell> mDocShell;
+  RefPtr<mozilla::dom::BrowsingContext> mBrowsingContext;
+
+  uint32_t mModalStateDepth;
+
+  uint32_t mSuppressEventHandlingDepth;
+
+  // Tracks whether our docshell is active.  If it is, mIsBackground
+  // is false.  Too bad we have so many different concepts of
+  // "active".
+  bool mIsBackground;
+
+  bool mIsRootOuterWindow;
+
+  // And these are the references between inner and outer windows.
+  nsPIDOMWindowInner* MOZ_NON_OWNING_REF mInnerWindow;
+
+  // A unique (as long as our 64-bit counter doesn't roll over) id for
+  // this window.
+  uint64_t mWindowID;
+
+  uint32_t mMarkedCCGeneration;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowOuter, NS_PIDOMWINDOWOUTER_IID)
+
+#include "nsPIDOMWindowInlines.h"
+
+#endif  // nsPIDOMWindow_h__