Disable windows dock shortcut key for fullscreen mode.

ash/accelerators/accelerator_controller.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 "ash/accelerators/accelerator_controller.h"
 
 #include <cmath>
 
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/ash_switches.h"
@@ skipping 506 matching lines @@
       return true;
     case SELECT_WIN_7:
       SwitchToWindow(7);
       return true;
     case SELECT_LAST_WIN:
       SwitchToWindow(-1);
       return true;
     case WINDOW_SNAP_LEFT:
     case WINDOW_SNAP_RIGHT: {
       aura::Window* window = wm::GetActiveWindow();
-      if (!window)
+      // Disable window docking shortcut key due to http://crbug.com/135487.
+      if (!window || wm::IsWindowFullscreen(window))
         break;
       internal::SnapSizer sizer(window,
           gfx::Point(),
           action == WINDOW_SNAP_LEFT ? internal::SnapSizer::LEFT_EDGE :
                                        internal::SnapSizer::RIGHT_EDGE,
           shell->GetGridSize());
       if (wm::IsWindowFullscreen(window) ||
           wm::IsWindowMaximized(window)) {
         SetRestoreBounds(window, sizer.GetSnapBounds(window->bounds()));
         wm::RestoreWindow(window);
@@ skipping 138 matching lines @@
     // Then set this one as active.
     Shell::GetInstance()->launcher()->ActivateLauncherItem(found_index);
   }
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash