Plumb smooth scrolling in Chromium compositor

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 44 matching lines @@
 
   // blink::WebGestureCurveTarget implementation.
   virtual bool scrollBy(const blink::WebFloatSize& offset,
                         const blink::WebFloatSize& velocity);
 
   bool gesture_scroll_on_impl_thread_for_testing() const {
     return gesture_scroll_on_impl_thread_;
   }
 
  private:
+  // Helper function for creating the right kind of animation curve.
+  blink::WebGestureCurve* CreateAnimationCurve(
+      const blink::WebGestureEvent& gesture_event);
   // Helper functions for handling more complicated input events.
   EventDisposition HandleMouseWheel(
       const blink::WebMouseWheelEvent& event);
   EventDisposition HandleGestureScrollBegin(
       const blink::WebGestureEvent& event);
   EventDisposition HandleGestureScrollUpdate(
       const blink::WebGestureEvent& event);
   EventDisposition HandleGestureScrollEnd(
       const blink::WebGestureEvent& event);
   EventDisposition HandleGestureFlingStart(
@@ skipping 71 matching lines @@
   bool smooth_scroll_enabled_;
 
   bool uma_latency_reporting_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(InputHandlerProxy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_INPUT_INPUT_HANDLER_PROXY_H_