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

chrome/browser/ui/views/tab_contents/tab_contents_view_views.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 "chrome/browser/ui/views/tab_contents/tab_contents_view_views.h"
 
 #include <vector>
 
 #include "base/time.h"
 #include "chrome/browser/ui/views/sad_tab_view.h"
@@ skipping 209 matching lines @@
       // no longer be focusable (e.g. if the location bar was focused and then
       // we switched to fullscreen mode).  In that case we default to the
       // default focus.
       SetInitialFocus();
     }
     view_storage->RemoveView(last_focused_view_storage_id_);
   }
 }
 
 void TabContentsViewViews::UpdatePreferredSize(const gfx::Size& pref_size) {
+  tab_contents_->UpdatePreferredSize(pref_size);
 }
 
 bool TabContentsViewViews::IsDoingDrag() const {
   return native_tab_contents_view_->IsDoingDrag();
 }
 
 void TabContentsViewViews::CancelDragAndCloseTab() {
   DCHECK(IsDoingDrag());
   // We can't close the tab while we're in the drag and
   // |drag_handler_->CancelDrag()| is async.  Instead, set a flag to cancel
@@ skipping 174 matching lines @@
     focus_manager_ = NULL;
     return focus_manager;
   }
   // TODO(jcampan): we should DCHECK on focus_manager_, as it should not be
   // NULL.  We are not doing it as it breaks some unit-tests.  We should
   // probably have an empty TabContentView implementation for the unit-tests,
   // that would prevent that code being executed in the unit-test case.
   // DCHECK(focus_manager_);
   return focus_manager_;
 }