Add autoresize capability for Chromium.

Source/WebKit/chromium/public/WebViewClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 55 matching lines @@
 class WebSpeechInputListener;
 class WebStorageNamespace;
 class WebURL;
 class WebURLRequest;
 class WebView;
 class WebWidget;
 struct WebConsoleMessage;
 struct WebContextMenuData;
 struct WebPoint;
 struct WebPopupMenuInfo;
+struct WebSize;
 struct WebWindowFeatures;
 
 // Since a WebView is a WebWidget, a WebViewClient is a WebWidgetClient.
 // Virtual inheritance allows an implementation of WebWidgetClient to be
 // easily reused as part of an implementation of WebViewClient.
 class WebViewClient : virtual public WebWidgetClient {
 public:
     // Factory methods -----------------------------------------------------
 
     // Create a new related WebView.  This method must clone its session storage
@@ skipping 153 matching lines @@
     // Take focus away from the WebView by focusing an adjacent UI element
     // in the containing window.
     virtual void focusNext() { }
     virtual void focusPrevious() { }
 
     // Called when a new node gets focused.
     virtual void focusedNodeChanged(const WebNode&) { }
 
     virtual void numberOfWheelEventHandlersChanged(unsigned) { }
 
+    // Call when the size of the view automatically changed.
+    virtual void autoSizeChanged(const WebSize&) { }
+
+    // Indicates two things:
+    //   1) The view may have a new layout now.
+    //   2) Calling layout() is a no-op.
+    // After calling WebView::layout(), expect to get this notification
+    // for the view unless the view did not need a layout.
+    virtual void didUpdateLayout() { }
+
     // Session history -----------------------------------------------------
 
     // Tells the embedder to navigate back or forward in session history by
     // the given offset (relative to the current position in session
     // history).
     virtual void navigateBackForwardSoon(int offset) { }
 
     // Returns the number of history items before/after the current
     // history item.
     virtual int historyBackListCount() { return 0; }
@@ skipping 60 matching lines @@
         return WebPageVisibilityStateVisible;
     }
 
 protected:
     ~WebViewClient() { }
 };
 
 } // namespace WebKit
 
 #endif