Callbacks through ChromeClient->RenderView->RenderViewHost for ContentsDidCha...

chrome/browser/renderer_host/render_view_host_delegate.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 227 matching lines @@
                                 int32 page_id, const GURL& icon_url) { }
 
   // An image that was requested to be downloaded by DownloadImage has
   // completed.
   virtual void DidDownloadImage(RenderViewHost* render_view_host,
                                 int id,
                                 const GURL& image_url,
                                 bool errored,
                                 const SkBitmap& image) { }
 
+  // The content's intrinsic width (prefWidth) changed.
+  virtual void DidContentsPreferredWidthChange(const int pref_width) { }
+
   // The page wants to open a URL with the specified disposition.
   virtual void RequestOpenURL(const GURL& url,
                               const GURL& referrer,
                               WindowOpenDisposition disposition) { }
 
   // A DOM automation operation completed. The result of the operation is
   // expressed in a json string.
   virtual void DomOperationResponse(const std::string& json_string,
                                     int automation_id) { }
 
@@ skipping 162 matching lines @@
 
   // A find operation in the current page completed.
   virtual void OnFindReply(int request_id,
                            int number_of_matches,
                            const gfx::Rect& selection_rect,
                            int active_match_ordinal,
                            bool final_update) { }
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_