Use contents size for android_webview layout.

android_webview/native/aw_contents.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 ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 
 #include <jni.h>
 #include <list>
 #include <string>
@@ skipping 129 matching lines @@
                                     bool finished) OVERRIDE;
   // IconHelper::Listener implementation.
   virtual void OnReceivedIcon(const GURL& icon_url,
                               const SkBitmap& bitmap) OVERRIDE;
   virtual void OnReceivedTouchIconUrl(const std::string& url,
                                       const bool precomposed) OVERRIDE;
 
   // AwRenderViewHostExtClient implementation.
   virtual void OnWebLayoutPageScaleFactorChanged(
       float page_scale_factor) OVERRIDE;
+  virtual void OnWebLayoutContentsSizeChanged(
+      const gfx::Size& contents_size) OVERRIDE;
 
   // BrowserViewRenderer::Client implementation.
   virtual bool RequestDrawGL(jobject canvas) OVERRIDE;
   virtual void PostInvalidate() OVERRIDE;
   virtual void UpdateGlobalVisibleRect() OVERRIDE;
   virtual void OnNewPicture() OVERRIDE;
   virtual gfx::Point GetLocationOnScreen() OVERRIDE;
   virtual void ScrollContainerViewTo(gfx::Vector2d new_value) OVERRIDE;
   virtual void DidOverscroll(gfx::Vector2d overscroll_delta) OVERRIDE;
 
@@ skipping 39 matching lines @@
   std::list<OriginCallback> pending_geolocation_prompts_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_