Add autoresize capability for Chromium.

Source/WebKit/chromium/public/WebWidgetClient.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 23 matching lines @@
 #include "WebNavigationPolicy.h"
 #include "WebScreenInfo.h"
 #include "platform/WebCommon.h"
 #include "platform/WebRect.h"
 
 namespace WebKit {
 
 class WebString;
 class WebWidget;
 struct WebCursorInfo;
+struct WebSize;
 
 class WebWidgetClient {
 public:
     // Called when a region of the WebWidget needs to be re-painted.
     virtual void didInvalidateRect(const WebRect&) { }
 
     // Called when a region of the WebWidget, given by clipRect, should be
     // scrolled by the specified dx and dy amounts.
     virtual void didScrollRect(int dx, int dy, const WebRect& clipRect) { }
 
@@ skipping 43 matching lines @@
     // WebWidget into fullscreen mode. Similarly, when exitFullScreen is
     // called, WebWidget::{will,Did}ExitFullScreen should bound resizing the
     // WebWidget out of fullscreen mode.
     virtual bool enterFullScreen() { return false; }
     virtual void exitFullScreen() { }
 
     // Called to get/set the position of the widget in screen coordinates.
     virtual WebRect windowRect() { return WebRect(); }
     virtual void setWindowRect(const WebRect&) { }
 
+    // Called to indicate that the Widget has changed size as a result of an
+    // auto size.
+    virtual void setSize(const WebSize&) { }

[darin (slow to review), 2011/11/30 23:29:05]

didResize or didChangeSize seems better to me.

[levin, 2011/12/01 20:23:45]

Made it didAutoResize to reflect the fact that it is only called during when
auto sizing is enabled.

Also I moved it to be near the other did* methods.

+
     // Called when a tooltip should be shown at the current cursor position.
     virtual void setToolTipText(const WebString&, WebTextDirection hint) { }
 
     // Called to get the position of the resizer rect in window coordinates.
     virtual WebRect windowResizerRect() { return WebRect(); }
 
     // Called to get the position of the root window containing the widget
     // in screen coordinates.
     virtual WebRect rootWindowRect() { return WebRect(); }
 
     // Called to query information about the screen where this widget is
     // displayed.
     virtual WebScreenInfo screenInfo() { return WebScreenInfo(); }
 
     // When this method gets called, WebWidgetClient implementation should
     // reset the input method by cancelling any ongoing composition.
     virtual void resetInputMethod() { }
 
 protected:
     ~WebWidgetClient() { }
 };
 
 } // namespace WebKit
 
 #endif