Remove KeyboardUmaEventFilter

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 <memory>
 #include <utility>
 #include <vector>
@@ skipping 77 matching lines @@
 class WindowTreeHostManager;
 class DisplayErrorObserver;
 class DisplayManager;
 class DragDropController;
 class EventClientImpl;
 class EventRewriterEventFilter;
 class EventTransformationHandler;
 class FirstRunHelper;
 class GPUSupport;
 class HighContrastController;
-class KeyboardUMAEventFilter;
 class LinkHandlerModelFactory;
 class LocaleNotificationController;
 class LockStateController;
 enum class LoginStatus;
 class MagnificationController;
 class MouseCursorEventFilter;
 class NewWindowDelegate;
 class OverlayEventFilter;
 class PartialMagnificationController;
 class PointerWatcherDelegate;
@@ skipping 472 matching lines @@
   std::unique_ptr<MouseCursorEventFilter> mouse_cursor_filter_;
   std::unique_ptr<ScreenPositionController> screen_position_controller_;
   std::unique_ptr<SystemModalContainerEventFilter> modality_filter_;
   std::unique_ptr<EventClientImpl> event_client_;
   std::unique_ptr<EventTransformationHandler> event_transformation_handler_;
 
   // An event filter that pre-handles key events while the partial
   // screenshot UI or the keyboard overlay is active.
   std::unique_ptr<OverlayEventFilter> overlay_filter_;
 
-  // An event filter for logging keyboard-related metrics.
-  std::unique_ptr<KeyboardUMAEventFilter> keyboard_metrics_filter_;
-
   // An event filter which handles moving and resizing windows.
   std::unique_ptr<ToplevelWindowEventHandler> toplevel_window_event_handler_;
 
   // An event filter which handles system level gestures
   std::unique_ptr<SystemGestureEventFilter> system_gesture_filter_;
 
   // An event filter that pre-handles global accelerators.
   std::unique_ptr<::wm::AcceleratorFilter> accelerator_filter_;
 
   std::unique_ptr<DisplayManager> display_manager_;
@@ skipping 51 matching lines @@
   base::SequencedWorkerPool* blocking_pool_;
 
   bool in_mus_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_