Add Keyboard Latency UMA Metrics.

content/browser/renderer_host/render_widget_host_view_aura.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 290 matching lines @@
   // Used in tests to set a mock client for touch selection controller. It will
   // create a new touch selection controller for the new client.
   void SetSelectionControllerClientForTest(
       std::unique_ptr<TouchSelectionControllerClientAura> client);
 
   // Exposed for tests.
   cc::SurfaceId SurfaceIdForTesting() const override;
 
   // RenderWidgetHostViewEventHandler::Delegate:
   gfx::Rect ConvertRectToScreen(const gfx::Rect& rect) const override;
-  void ForwardKeyboardEvent(const NativeWebKeyboardEvent& event,
-                            bool* update_event) override;
+  void ForwardKeyboardEventWithLatencyInfo(const NativeWebKeyboardEvent& event,
+                                           const ui::LatencyInfo& latency,
+                                           bool* update_event) override;
   RenderFrameHostImpl* GetFocusedFrame();
   bool NeedsMouseCapture() override;
   void SetTooltipsEnabled(bool enable) override;
   void ShowContextMenu(const ContextMenuParams& params) override;
   void Shutdown() override;
 
   RenderWidgetHostViewEventHandler* event_handler() {
     return event_handler_.get();
   }
 
@@ skipping 251 matching lines @@
   std::unique_ptr<RenderWidgetHostViewEventHandler> event_handler_;
 
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_