Make panel adjust bounds per preferred size change notification on Windows.

content/browser/tab_contents/tab_contents_delegate.cc

 // Copyright (c) 2011 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.
 
 #include "content/browser/tab_contents/tab_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/browser/javascript_dialogs.h"
@@ skipping 256 matching lines @@
   }
  private:
   friend struct DefaultSingletonTraits<JavaScriptDialogCreatorStub>;
 };
 
 content::JavaScriptDialogCreator*
 TabContentsDelegate::GetJavaScriptDialogCreator() {
   return JavaScriptDialogCreatorStub::GetInstance();
 }
 
+void TabContentsDelegate::UpdatePreferredSize(const gfx::Size& pref_size) {
+}
+
 TabContentsDelegate::~TabContentsDelegate() {
   while (!attached_contents_.empty()) {
     TabContents* tab_contents = *attached_contents_.begin();
     tab_contents->set_delegate(NULL);
   }
   DCHECK(attached_contents_.empty());
 }
 
 void TabContentsDelegate::Attach(TabContents* tab_contents) {
   DCHECK(attached_contents_.find(tab_contents) == attached_contents_.end());
   attached_contents_.insert(tab_contents);
 }
 
 void TabContentsDelegate::Detach(TabContents* tab_contents) {
   DCHECK(attached_contents_.find(tab_contents) != attached_contents_.end());
   attached_contents_.erase(tab_contents);
 }