Very basic Android browser-side compositing support.

content/browser/android/graphics_context.h

Index: content/browser/android/graphics_context.h
diff --git a/content/public/browser/android/graphics_context.h b/content/browser/android/graphics_context.h
similarity index 77%
rename from content/public/browser/android/graphics_context.h
rename to content/browser/android/graphics_context.h
index a8d828580c1fff2481922f789f00a9a223be4cbb..ed7bbcea43c7ec44cedcbe6207a4c2c8922288e5 100644
--- a/content/public/browser/android/graphics_context.h
+++ b/content/browser/android/graphics_context.h
@@ -19,11 +19,13 @@ class GraphicsContext {
  public:
   virtual ~GraphicsContext() { }
 
-  // Create a UI graphics context that renders to the given surface.
+  // Create and returns a graphics context on the caller's thread and
+  // also creates an image transport surface associated with the given
+  // parent window.
   static GraphicsContext* CreateForUI(ANativeWindow* ui_window);
 
-  virtual WebKit::WebGraphicsContext3D* GetContext3D() = 0;
   virtual uint32 InsertSyncPoint() = 0;
+  virtual int GetSurfaceID() = 0;
 };
 
 }  // namespace content