[android_webview] Use auto-sizing for webviews in wrap content mode.

android_webview/renderer/aw_render_view_ext.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_RENDERER_AW_RENDER_VIEW_EXT_H_
 #define ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "content/public/renderer/render_view_observer.h"
@@ skipping 31 matching lines @@
 
   void OnDocumentHasImagesRequest(int id);
 
   void OnDoHitTest(int view_x, int view_y);
 
   void OnSetTextZoomLevel(double zoom_level);
 
   void OnResetScrollAndScaleState();
 
   void OnSetInitialPageScale(double page_scale_factor);
+
+  void OnSetAutoResizeMode(bool enable, int width);
+
   void OnSetBackgroundColor(SkColor c);
 
   void UpdatePageScaleFactor();
 
   // WebKit::WebPermissionClient implementation.
   virtual bool allowDisplayingInsecureContent(
       WebKit::WebFrame* frame,
       bool enabled_per_settings,
       const WebKit::WebSecurityOrigin& origin,
       const WebKit::WebURL& url) OVERRIDE;
   virtual bool allowRunningInsecureContent(
       WebKit::WebFrame* frame,
       bool enabled_per_settings,
       const WebKit::WebSecurityOrigin& origin,
       const WebKit::WebURL& url) OVERRIDE;
 
   bool capture_picture_enabled_;
 
   float page_scale_factor_;
 
   DISALLOW_COPY_AND_ASSIGN(AwRenderViewExt);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_