[Android WebView] Migrate the rendering code to a separate set of classes.

android_webview/renderer/aw_render_view_ext.h

Index: android_webview/renderer/aw_render_view_ext.h
diff --git a/android_webview/renderer/aw_render_view_ext.h b/android_webview/renderer/aw_render_view_ext.h
index 8efa5b3b8eaa45a9ff56e5d93bbf6bee7ffab7ee..c6d3bba9de24da1090a8f7ce2b0dc50abdc9e13c 100644
--- a/android_webview/renderer/aw_render_view_ext.h
+++ b/android_webview/renderer/aw_render_view_ext.h
@@ -7,11 +7,8 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/memory/weak_ptr.h"
 #include "content/public/renderer/render_view_observer.h"
-#include "skia/ext/refptr.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPermissionClient.h"
-#include "third_party/skia/include/core/SkPicture.h"
 
 namespace WebKit {
 
@@ -30,9 +27,6 @@ class AwRenderViewExt : public content::RenderViewObserver,
  public:
   static void RenderViewCreated(content::RenderView* render_view);
 
-  // Required to be public by IPC_MESSAGE_HANDLER for sync messages.
-  using content::RenderViewObserver::Send;
-
  private:
   AwRenderViewExt(content::RenderView* render_view);
   virtual ~AwRenderViewExt();
@@ -47,12 +41,6 @@ class AwRenderViewExt : public content::RenderViewObserver,
 
   void OnDoHitTest(int view_x, int view_y);
 
-  void OnEnableCapturePictureCallback(bool enable);
-
-  void OnPictureUpdate(skia::RefPtr<SkPicture> picture);
-
-  void OnCapturePictureSync();
-
   // WebKit::WebPermissionClient implementation.
   virtual bool allowImage(WebKit::WebFrame* frame,
                           bool enabledPerSettings,