Enable overview mode by default.

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 <algorithm>
 #include <cmath>
 #include <iostream>
 #include <string>
@@ skipping 68 matching lines @@
 
 bool DebugShortcutsEnabled() {
 #if defined(NDEBUG)
   return CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAshDebugShortcuts);
 #else
   return true;
 #endif
 }
 
+bool OverviewEnabled() {
+  return !CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kAshDisableOverviewMode);
+}
+
 bool HandleCycleWindowMRU(WindowCycleController::Direction direction,
                           bool is_alt_down) {
   Shell::GetInstance()->
       window_cycle_controller()->HandleCycleWindow(direction, is_alt_down);
   // Always report we handled the key, even if the window didn't change.
   return true;
 }
 
 bool HandleCycleWindowOverviewMRU(WindowSelector::Direction direction) {
   Shell::GetInstance()->
@@ skipping 418 matching lines @@
   // function might be called *twice*, via BrowserView::PreHandleKeyboardEvent
   // and BrowserView::HandleKeyboardEvent, for a single accelerator press.
   switch (action) {
     case ACCESSIBLE_FOCUS_NEXT:
       return HandleAccessibleFocusCycle(false);
     case ACCESSIBLE_FOCUS_PREVIOUS:
       return HandleAccessibleFocusCycle(true);
     case CYCLE_BACKWARD_MRU:
       if (key_code == ui::VKEY_TAB)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_PREVWINDOW_TAB);
-      if (CommandLine::ForCurrentProcess()->HasSwitch(
-              switches::kAshEnableOverviewMode)) {
+      if (OverviewEnabled())
         return HandleCycleWindowOverviewMRU(WindowSelector::BACKWARD);
-      }
       return HandleCycleWindowMRU(WindowCycleController::BACKWARD,
                                   accelerator.IsAltDown());
     case CYCLE_FORWARD_MRU:
       if (key_code == ui::VKEY_TAB)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_NEXTWINDOW_TAB);
-      if (CommandLine::ForCurrentProcess()->HasSwitch(
-              switches::kAshEnableOverviewMode)) {
+      if (OverviewEnabled())
         return HandleCycleWindowOverviewMRU(WindowSelector::FORWARD);
-      }
       return HandleCycleWindowMRU(WindowCycleController::FORWARD,
                                   accelerator.IsAltDown());
     case CYCLE_BACKWARD_LINEAR:
-      if (CommandLine::ForCurrentProcess()->HasSwitch(
-              switches::kAshEnableOverviewMode)) {
+      if (OverviewEnabled()) {
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_OVERVIEW_F5);
         ToggleOverviewMode();
         return true;
       }
       if (key_code == ui::VKEY_MEDIA_LAUNCH_APP1)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_PREVWINDOW_F5);
       HandleCycleWindowLinear(CYCLE_BACKWARD);
       return true;
     case CYCLE_FORWARD_LINEAR:
-      if (CommandLine::ForCurrentProcess()->HasSwitch(
-              switches::kAshEnableOverviewMode)) {
+      if (OverviewEnabled()) {
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_OVERVIEW_F5);
         ToggleOverviewMode();
         return true;
       }
       if (key_code == ui::VKEY_MEDIA_LAUNCH_APP1)
         shell->delegate()->RecordUserMetricsAction(UMA_ACCEL_NEXTWINDOW_F5);
       HandleCycleWindowLinear(CYCLE_FORWARD);
       return true;
 #if defined(OS_CHROMEOS)
     case ADD_REMOVE_DISPLAY:
@@ skipping 433 matching lines @@
     keyboard_brightness_control_delegate) {
   keyboard_brightness_control_delegate_ =
       keyboard_brightness_control_delegate.Pass();
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash