Introduce "Preferred" accelerators

ash/accelerators/accelerator_table.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_table.h"
 
 #include "base/basictypes.h"
 
 namespace ash {
 
@@ skipping 213 matching lines @@
   { true, ui::VKEY_B, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
     DEBUG_TOGGLE_SHOW_DEBUG_BORDERS },
   { true, ui::VKEY_F, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
     DEBUG_TOGGLE_SHOW_FPS_COUNTER },
   { true, ui::VKEY_P, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
     DEBUG_TOGGLE_SHOW_PAINT_RECTS },
 };
 
 const size_t kDebugAcceleratorDataLength = arraysize(kDebugAcceleratorData);
 
-const AcceleratorAction kReservedActions[] = {
+const AcceleratorAction kPreferredActions[] = {
   // Window cycling accelerators.
   CYCLE_BACKWARD_MRU,  // Shift+Alt+Tab
   CYCLE_FORWARD_MRU,  // Alt+Tab
+};
+
+const size_t kPreferredActionsLength = arraysize(kPreferredActions);
+
+const AcceleratorAction kReservedActions[] = {
 #if defined(OS_CHROMEOS)
   POWER_PRESSED,
   POWER_RELEASED,
+#else
+  DUMMY_FOR_RESERVED,
 #endif
 };
 
 const size_t kReservedActionsLength = arraysize(kReservedActions);
 
 const AcceleratorAction kReservedDebugActions[] = {
   PRINT_LAYER_HIERARCHY,
   PRINT_VIEW_HIERARCHY,
   PRINT_WINDOW_HIERARCHY,
   DEBUG_TOGGLE_DEVICE_SCALE_FACTOR,
@@ skipping 170 matching lines @@
     WINDOW_MINIMIZE,
     TOGGLE_FULLSCREEN,
     TOGGLE_MAXIMIZED,
     WINDOW_POSITION_CENTER,
     ROTATE_WINDOW,
 };
 
 const size_t kActionsNeedingWindowLength = arraysize(kActionsNeedingWindow);
 
 }  // namespace ash