Expand UMA coverage for compositor-handled events and fling FPS

content/renderer/input/input_handler_proxy.h

 // Copyright 2013 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_RENDERER_INPUT_INPUT_HANDLER_PROXY_H_
 #define CONTENT_RENDERER_INPUT_INPUT_HANDLER_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
 #include "base/gtest_prod_util.h"
@@ skipping 122 matching lines @@
   bool has_fling_animation_started_;
 
   // Non-zero only within the scope of |scrollBy|.
   gfx::Vector2dF current_fling_velocity_;
 
   // Used to animate rubber-band over-scroll effect on Mac.
   scoped_ptr<InputScrollElasticityController> scroll_elasticity_controller_;
 
   bool smooth_scroll_enabled_;
 
+  bool uma_latency_reporting_enabled_;
+
   DISALLOW_COPY_AND_ASSIGN(InputHandlerProxy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_INPUT_INPUT_HANDLER_PROXY_H_