1 files changed, 55 insertions, 0 deletions
diff --git a/widget/InProcessCompositorWidget.h b/widget/InProcessCompositorWidget.h
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+++ b/widget/InProcessCompositorWidget.h
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+/* 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 mozilla_widget_InProcessCompositorWidget_h__
+#define mozilla_widget_InProcessCompositorWidget_h__
+
+#include "CompositorWidget.h"
+
+namespace mozilla {
+namespace widget {
+
+// This version of CompositorWidget implements a wrapper around
+// nsBaseWidget.
+class InProcessCompositorWidget : public CompositorWidget {
+ public:
+  explicit InProcessCompositorWidget(const layers::CompositorOptions& aOptions,
+                                     nsBaseWidget* aWidget);
+
+  virtual bool PreRender(WidgetRenderingContext* aManager) override;
+  virtual void PostRender(WidgetRenderingContext* aManager) override;
+  virtual RefPtr<layers::NativeLayerRoot> GetNativeLayerRoot() override;
+  virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
+  virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
+      const LayoutDeviceIntRegion& aInvalidRegion,
+      layers::BufferMode* aBufferMode) override;
+  virtual void EndRemoteDrawing() override;
+  virtual void EndRemoteDrawingInRegion(
+      gfx::DrawTarget* aDrawTarget,
+      const LayoutDeviceIntRegion& aInvalidRegion) override;
+  virtual void CleanupRemoteDrawing() override;
+  virtual void CleanupWindowEffects() override;
+  virtual bool InitCompositor(layers::Compositor* aCompositor) override;
+  virtual LayoutDeviceIntSize GetClientSize() override;
+  virtual uint32_t GetGLFrameBufferFormat() override;
+  virtual void ObserveVsync(VsyncObserver* aObserver) override;
+  virtual uintptr_t GetWidgetKey() override;
+
+  // If you can override this method, inherit from CompositorWidget instead.
+  nsIWidget* RealWidget() override;
+
+ protected:
+  nsBaseWidget* mWidget;
+  // Bug 1679368: Maintain an additional widget pointer, constant, and
+  // function for sanity checking while we chase a crash.
+  static const char* CANARY_VALUE;
+  const char* mCanary;
+  nsBaseWidget* mWidgetSanity;
+  void CheckWidgetSanity();
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif