1 files changed, 108 insertions, 0 deletions
diff --git a/gfx/ipc/GPUChild.h b/gfx/ipc/GPUChild.h
new file mode 100644
index 0000000000..6c2765fcc7
--- /dev/null
+++ b/gfx/ipc/GPUChild.h
@@ -0,0 +1,108 @@
+/* -*- 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 _include_mozilla_gfx_ipc_GPUChild_h_
+#define _include_mozilla_gfx_ipc_GPUChild_h_
+
+#include "mozilla/RefPtr.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/ipc/CrashReporterHelper.h"
+#include "mozilla/gfx/PGPUChild.h"
+#include "mozilla/gfx/gfxVarReceiver.h"
+
+namespace mozilla {
+
+namespace dom {
+class MemoryReportRequestHost;
+}  // namespace dom
+namespace gfx {
+
+class GPUProcessHost;
+
+class GPUChild final : public ipc::CrashReporterHelper<GeckoProcessType_GPU>,
+                       public PGPUChild,
+                       public gfxVarReceiver {
+  typedef mozilla::dom::MemoryReportRequestHost MemoryReportRequestHost;
+
+ public:
+  NS_INLINE_DECL_REFCOUNTING(GPUChild, final)
+
+  explicit GPUChild(GPUProcessHost* aHost);
+
+  void Init();
+
+  bool EnsureGPUReady();
+  void MarkWaitForVarUpdate() { mWaitForVarUpdate = true; }
+
+  // Notifies that an unexpected GPU process shutdown has been noticed by a
+  // different IPDL actor, and the GPU process is being torn down as a result.
+  // ActorDestroy may receive either NormalShutdown or AbnormalShutdown as a
+  // reason, depending on timings, but either way we treat the shutdown as
+  // abnormal.
+  void OnUnexpectedShutdown();
+
+  // gfxVarReceiver overrides.
+  void OnVarChanged(const GfxVarUpdate& aVar) override;
+
+  // PGPUChild overrides.
+  mozilla::ipc::IPCResult RecvInitComplete(const GPUDeviceData& aData);
+  mozilla::ipc::IPCResult RecvDeclareStable();
+  mozilla::ipc::IPCResult RecvReportCheckerboard(const uint32_t& aSeverity,
+                                                 const nsCString& aLog);
+  mozilla::ipc::IPCResult RecvCreateVRProcess();
+  mozilla::ipc::IPCResult RecvShutdownVRProcess();
+
+  mozilla::ipc::IPCResult RecvAccumulateChildHistograms(
+      nsTArray<HistogramAccumulation>&& aAccumulations);
+  mozilla::ipc::IPCResult RecvAccumulateChildKeyedHistograms(
+      nsTArray<KeyedHistogramAccumulation>&& aAccumulations);
+  mozilla::ipc::IPCResult RecvUpdateChildScalars(
+      nsTArray<ScalarAction>&& aScalarActions);
+  mozilla::ipc::IPCResult RecvUpdateChildKeyedScalars(
+      nsTArray<KeyedScalarAction>&& aScalarActions);
+  mozilla::ipc::IPCResult RecvRecordChildEvents(
+      nsTArray<ChildEventData>&& events);
+  mozilla::ipc::IPCResult RecvRecordDiscardedData(
+      const DiscardedData& aDiscardedData);
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+  mozilla::ipc::IPCResult RecvGraphicsError(const nsCString& aError);
+  mozilla::ipc::IPCResult RecvNotifyUiObservers(const nsCString& aTopic);
+  mozilla::ipc::IPCResult RecvNotifyDeviceReset(const GPUDeviceData& aData);
+  mozilla::ipc::IPCResult RecvNotifyOverlayInfo(const OverlayInfo aInfo);
+  mozilla::ipc::IPCResult RecvNotifySwapChainInfo(const SwapChainInfo aInfo);
+  mozilla::ipc::IPCResult RecvNotifyDisableRemoteCanvas();
+  mozilla::ipc::IPCResult RecvFlushMemory(const nsString& aReason);
+  mozilla::ipc::IPCResult RecvAddMemoryReport(const MemoryReport& aReport);
+  mozilla::ipc::IPCResult RecvUpdateFeature(const Feature& aFeature,
+                                            const FeatureFailure& aChange);
+  mozilla::ipc::IPCResult RecvUsedFallback(const Fallback& aFallback,
+                                           const nsCString& aMessage);
+  mozilla::ipc::IPCResult RecvBHRThreadHang(const HangDetails& aDetails);
+  mozilla::ipc::IPCResult RecvUpdateMediaCodecsSupported(
+      const media::MediaCodecsSupported& aSupported);
+  mozilla::ipc::IPCResult RecvFOGData(ByteBuf&& aBuf);
+
+  bool SendRequestMemoryReport(const uint32_t& aGeneration,
+                               const bool& aAnonymize,
+                               const bool& aMinimizeMemoryUsage,
+                               const Maybe<ipc::FileDescriptor>& aDMDFile);
+
+  static void Destroy(RefPtr<GPUChild>&& aChild);
+
+ private:
+  virtual ~GPUChild();
+
+  GPUProcessHost* mHost;
+  UniquePtr<MemoryReportRequestHost> mMemoryReportRequest;
+  bool mGPUReady;
+  bool mWaitForVarUpdate = false;
+  bool mUnexpectedShutdown = false;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // _include_mozilla_gfx_ipc_GPUChild_h_