Browser side changes for software compositing

content/browser/renderer_host/render_widget_host_view_aura.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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 298 matching lines @@
   virtual void AccessibilityScrollToPoint(
       int acc_obj_id, gfx::Point point) OVERRIDE;
   virtual void AccessibilitySetTextSelection(
       int acc_obj_id, int start_offset, int end_offset) OVERRIDE;
   virtual gfx::Point GetLastTouchEventLocation() const OVERRIDE;
   virtual void FatalAccessibilityTreeError() OVERRIDE;
 
   virtual ~RenderWidgetHostViewAura();
 
   void UpdateCursorIfOverSelf();
-  bool ShouldSkipFrame(gfx::Size size_in_dip);
+  bool ShouldSkipFrame(gfx::Size size_in_dip) const;
   void CheckResizeLocks(gfx::Size size_in_dip);
   void UpdateExternalTexture();
   ui::InputMethod* GetInputMethod() const;
 
   // Returns whether the widget needs an input grab to work properly.
   bool NeedsInputGrab();
 
   // Confirm existing composition text in the webpage and ask the input method
   // to cancel its ongoing composition session.
   void FinishImeCompositionSession();
 
   // This method computes movementX/Y and keeps track of mouse location for
   // mouse lock on all mouse move events.
   void ModifyEventMovementAndCoords(WebKit::WebMouseEvent* event);
 
   // If |clip| is non-empty and and doesn't contain |rect| or |clip| is empty
   // SchedulePaint() is invoked for |rect|.
   void SchedulePaintIfNotInClip(const gfx::Rect& rect, const gfx::Rect& clip);
 
   // Helper method to determine if, in mouse locked mode, the cursor should be
   // moved to center.
   bool ShouldMoveToCenter();
 
-  // Run the compositing callbacks.
-  void RunCompositingDidCommitCallbacks();
+  // Run all on compositing commit callbacks.
+  void RunOnCommitCallbacks();
+
+  // Add on compositing commit callback.
+  void AddOnCommitCallbackAndDisableLocks(const base::Closure& callback);
 
   // Called after |window_| is parented to a RootWindow.
   void AddedToRootWindow();
 
   // Called prior to removing |window_| from a RootWindow.
   void RemovingFromRootWindow();
 
   // Called after commit for the last reference to the texture going away
   // after it was released as the frontbuffer.
   void SetSurfaceNotInUseByCompositor(scoped_refptr<ui::Texture>);
@@ skipping 29 matching lines @@
   bool SwapBuffersPrepare(const gfx::Rect& surface_rect,
                           const gfx::Rect& damage_rect,
                           const std::string& mailbox_name,
                           const BufferPresentedCallback& ack_callback);
 
   void SwapBuffersCompleted(
       const BufferPresentedCallback& ack_callback,
       const scoped_refptr<ui::Texture>& texture_to_return);
 
   void SwapDelegatedFrame(
-      scoped_ptr<cc::DelegatedFrameData> frame,
-      float device_scale_factor);
+      scoped_ptr<cc::DelegatedFrameData> frame_data,
+      float frame_device_scale_factor);
   void SendDelegatedFrameAck();
 
+  void SwapSoftwareFrame(
+      scoped_ptr<cc::SoftwareFrameData> frame_data,
+      float frame_device_scale_factor);
+  void SendSoftwareFrameAck(const TransportDIB::Id& id);
+
   BrowserAccessibilityManager* GetOrCreateBrowserAccessibilityManager();
 
 #if defined(OS_WIN)
   // Sets the cutout rects from transient windows. These are rectangles that
   // windowed NPAPI plugins shouldn't paint in. Overwrites any previous cutout
   // rects.
   void UpdateTransientRects(const std::vector<gfx::Rect>& rects);
 
   // Updates the total list of cutout rects, which is the union of transient
   // windows and constrained windows.
@@ skipping 56 matching lines @@
   bool has_composition_text_;
 
   // Current tooltip text.
   string16 tooltip_;
 
   std::vector<base::Closure> on_compositing_did_commit_callbacks_;
 
   // The current frontbuffer texture.
   scoped_refptr<ui::Texture> current_surface_;
 
+  // The current frontbuffer DIB.
+  scoped_ptr<TransportDIB> current_dib_;
+
+  // The current DIB id as it was received from the renderer. Note that on
+  // some platforms (e.g. Windows) this is different from current_dib_->id().
+  TransportDIB::Id current_dib_id_;
+
   // The damage in the previously presented buffer.
   SkRegion previous_damage_;
 
   // Pending damage from previous frames that we skipped.
   SkRegion skipped_damage_;
 
   // The size of the last frame that was swapped (even if we skipped it).
   // Used to determine when the skipped_damage_ needs to be reset due to
   // size changes between front- and backbuffer.
   gfx::Size last_swapped_surface_size_;
@@ skipping 77 matching lines @@
   base::TimeTicks last_draw_ended_;
 
   gfx::NativeViewAccessible accessible_parent_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_