Add occlusion support to WebContentsImpl and RenderWidgetHostView

content/test/test_render_view_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_
 #define CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 51 matching lines @@
   gfx::Vector2dF GetLastScrollOffset() const override;
   gfx::NativeView GetNativeView() const override;
   gfx::NativeViewId GetNativeViewId() const override;
   gfx::NativeViewAccessible GetNativeViewAccessible() override;
   ui::TextInputClient* GetTextInputClient() override;
   bool HasFocus() const override;
   bool IsSurfaceAvailableForCopy() const override;
   void Show() override;
   void Hide() override;
   bool IsShowing() override;
+  void WasUnOccluded() override;
+  void WasOccluded() override;
   gfx::Rect GetViewBounds() const override;
 #if defined(OS_MACOSX)
   void SetActive(bool active) override;
   void SetWindowVisibility(bool visible) override {}
   void WindowFrameChanged() override {}
   void ShowDefinitionForSelection() override {}
   bool SupportsSpeech() const override;
   void SpeakSelection() override;
   bool IsSpeaking() const override;
   void StopSpeaking() override;
@@ skipping 48 matching lines @@
   gfx::GLSurfaceHandle GetCompositingSurface() override;
   bool LockMouse() override;
   void UnlockMouse() override;
 #if defined(OS_WIN)
   virtual void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) override;
   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 #endif
 
   bool is_showing() const { return is_showing_; }
+  bool is_occluded() const { return is_occluded_; }
   bool did_swap_compositor_frame() const { return did_swap_compositor_frame_; }
 
  protected:
   RenderWidgetHostImpl* rwh_;
 
  private:
   bool is_showing_;
+  bool is_occluded_;
   bool did_swap_compositor_frame_;
   ui::DummyTextInputClient text_input_client_;
 };
 
 #if defined(COMPILER_MSVC)
 // See comment for same warning on RenderViewHostImpl.
 #pragma warning(push)
 #pragma warning(disable: 4250)
 #endif
 
@@ skipping 158 matching lines @@
  private:
   typedef scoped_ptr<ui::test::ScopedSetSupportedScaleFactors>
       ScopedSetSupportedScaleFactors;
   ScopedSetSupportedScaleFactors scoped_set_supported_scale_factors_;
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostImplTestHarness);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_