Part 1: Refactor Android WebView graphics code

android_webview/browser/browser_view_renderer_client.h

 // Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
 #define ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/geometry/vector2d_f.h"
 
 namespace android_webview {
 
 class BrowserViewRendererClient {
  public:
-  // Request DrawGL be called. Passing null |canvas| implies the request
-  // will be of AwDrawGLInfo::kModeProcess type. |wait_for_completion|
-  // will cause the call to block until DrawGL has happened; it does not
-  // work when |canvas| is not NULL. The callback may never be made, and
-  // the mode may be promoted to kModeDraw.
-  virtual bool RequestDrawGL(jobject canvas, bool wait_for_completion) = 0;
-
   // Called when a new Picture is available. Needs to be enabled
   // via the EnableOnNewPicture method.
   virtual void OnNewPicture() = 0;
 
   // Called to trigger view invalidations.
   virtual void PostInvalidate() = 0;
 
-  // Called to update the parent draw constraints in browser view renderer.
-  virtual void UpdateParentDrawConstraints() = 0;
-
-  // Called if commit is skipped due to pipeline stall.
-  virtual void DidSkipCommitFrame() = 0;
-
   // Called to get view's absolute location on the screen.
   virtual gfx::Point GetLocationOnScreen() = 0;
 
   // Try to set the view's scroll offset to |new_value|.
   virtual void ScrollContainerViewTo(gfx::Vector2d new_value) = 0;
 
   // Is a Android view system managed fling in progress?
   virtual bool IsFlingActive() const = 0;
 
   // Sets the following:
@@ skipping 10 matching lines @@
   // Handle overscroll.
   virtual void DidOverscroll(gfx::Vector2d overscroll_delta) = 0;
 
  protected:
   virtual ~BrowserViewRendererClient() {}
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_