Allow resizing a panel using chrome.windows.update() extension API.

chrome/browser/ui/panels/panel_manager.cc

 // Copyright (c) 2012 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/panels/panel_manager.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/fullscreen.h"
@@ skipping 181 matching lines @@
 void PanelManager::OnPreferredWindowSizeChanged(
     Panel* panel, const gfx::Size& preferred_window_size) {
   if (!auto_sizing_enabled_)
     return;
   panel_strip_->OnWindowSizeChanged(panel, preferred_window_size);
 }
 
 void PanelManager::ResizePanel(Panel* panel, const gfx::Size& new_size) {
   // Explicit resizing is not allowed for auto-resizable panels for now.
   // http://crbug.com/109343
-  if (panel->auto_resizable())
+  if (panel->auto_resizable()) {
+    LOG(INFO) << "Resizing auto-resizable Panels is not supported yet.";
     return;
+  }
   panel_strip_->OnWindowSizeChanged(panel, new_size);
-
 }
 
 bool PanelManager::ShouldBringUpTitlebars(int mouse_x, int mouse_y) const {
   return panel_strip_->ShouldBringUpTitlebars(mouse_x, mouse_y);
 }
 
 void PanelManager::BringUpOrDownTitlebars(bool bring_up) {
   panel_strip_->BringUpOrDownTitlebars(bring_up);
 }
 
@@ skipping 53 matching lines @@
   for (PanelOverflowStrip::Panels::const_iterator iter =
            panel_overflow_strip_->panels().begin();
        iter != panel_overflow_strip_->panels().end(); ++iter)
     panels.push_back(*iter);
   return panels;
 }
 
 void PanelManager::SetMouseWatcher(PanelMouseWatcher* watcher) {
   panel_mouse_watcher_.reset(watcher);
 }