3D Compositing in <browser>, first draft.

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_
 #pragma once
 
 #include <map>
 #include <vector>
@@ skipping 108 matching lines @@
       TransportDIB::Handle* surface_handle) OVERRIDE;
   virtual void AcceleratedSurfaceRelease(uint64 surface_id) OVERRIDE;
   virtual void GetScreenInfo(WebKit::WebScreenInfo* results) OVERRIDE;
   virtual gfx::Rect GetRootWindowBounds() OVERRIDE;
   virtual void ProcessTouchAck(WebKit::WebInputEvent::Type type,
                                bool processed) OVERRIDE;
   virtual void SetHasHorizontalScrollbar(
       bool has_horizontal_scrollbar) OVERRIDE;
   virtual void SetScrollOffsetPinning(
       bool is_pinned_to_left, bool is_pinned_to_right) OVERRIDE;
-  virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
 
   // Overridden from ui::TextInputClient:
   virtual void SetCompositionText(
       const ui::CompositionText& composition) OVERRIDE;
   virtual void ConfirmCompositionText() OVERRIDE;
   virtual void ClearCompositionText() OVERRIDE;
   virtual void InsertText(const string16& text) OVERRIDE;
   virtual void InsertChar(char16 ch, int flags) OVERRIDE;
@@ skipping 191 matching lines @@
   class ResizeLock;
   // These locks are the ones waiting for a texture of the right size to come
   // back from the renderer/GPU process.
   std::vector<linked_ptr<ResizeLock> > resize_locks_;
   // These locks are the ones waiting for a frame to be drawn.
   std::vector<linked_ptr<ResizeLock> > locks_pending_draw_;
 
   // This lock is for waiting for a front surface to become available to draw.
   scoped_refptr<aura::CompositorLock> released_front_lock_;
 
+  class CompositingDelegateAura : public CompositingDelegate {
+   public:
+    virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE; 
+    virtual bool ResizeNeedsNewSurface() OVERRIDE;
+
+   private:
+    friend class RenderWidgetHostViewAura;
+    CompositingDelegateAura(RenderWidgetHostViewAura* view)
+      : view_(view)
+    {}
+    RenderWidgetHostViewAura* view_;
+  };
+
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_