Added UMA statistics for changing the active window via click or touch events.

ash/shell.h

 // 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.
 
 #ifndef ASH_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 51 matching lines @@
 }
 }
 
 namespace wm {
 class AcceleratorFilter;
 class CompoundEventFilter;
 class InputMethodEventFilter;
 class NestedAcceleratorController;
 class ShadowController;
 class VisibilityController;
+class WindowActivationPreTargetHandler;
 class WindowModalityController;
 }
 
 namespace ash {
 
 class AcceleratorController;
 class AccessibilityDelegate;
 class AppListController;
 class AshNativeCursorManager;
 class AutoclickController;
@@ skipping 30 matching lines @@
 class PartialMagnificationController;
 class PartialScreenshotController;
 class PowerButtonController;
 class PowerEventObserver;
 class ProjectingObserver;
 class ResizeShadowController;
 class ResolutionNotificationController;
 class RootWindowController;
 class ScopedTargetRootWindow;
 class ScreenAsh;
+class ScreenEventTaskSwitchMetricRecorder;
 class ScreenOrientationController;
 class ScreenPositionController;
 class SessionStateDelegate;
 class Shelf;
 class ShelfDelegate;
 class ShelfItemDelegateManager;
 class ShelfModel;
 class ShelfWindowWatcher;
 class ShellDelegate;
 struct ShellInitParams;
@@ skipping 539 matching lines @@
   scoped_ptr<ui::UserActivityDetector> user_activity_detector_;
   scoped_ptr<VideoDetector> video_detector_;
   scoped_ptr<WindowCycleController> window_cycle_controller_;
   scoped_ptr<WindowSelectorController> window_selector_controller_;
   scoped_ptr<FocusCycler> focus_cycler_;
   scoped_ptr<DisplayController> display_controller_;
   scoped_ptr<HighContrastController> high_contrast_controller_;
   scoped_ptr<MagnificationController> magnification_controller_;
   scoped_ptr<PartialMagnificationController> partial_magnification_controller_;
   scoped_ptr<AutoclickController> autoclick_controller_;
+  scoped_ptr<::wm::WindowActivationPreTargetHandler>
+      window_activation_pretarget_handler_;
+  scoped_ptr<ScreenEventTaskSwitchMetricRecorder>
+      screen_event_task_switch_metric_recorder_;
   scoped_ptr<aura::client::FocusClient> focus_client_;
   aura::client::ActivationClient* activation_client_;
   scoped_ptr<PartialScreenshotController> partial_screenshot_controller_;
 
   scoped_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
   scoped_ptr<ScreenPositionController> screen_position_controller_;
   scoped_ptr<SystemModalContainerEventFilter> modality_filter_;
   scoped_ptr<EventClientImpl> event_client_;
   scoped_ptr<EventTransformationHandler> event_transformation_handler_;
 
@@ skipping 75 matching lines @@
 
   // Injected content::GPUDataManager support.
   scoped_ptr<GPUSupport> gpu_support_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_