Remove all fling related stuff from the renderer assuming that browser side

content/browser/renderer_host/render_widget_host_impl.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 #include <set>
 #include <utility>
 
@@ skipping 1537 matching lines @@
     } else if (frame->software_frame_data) {
       ack.last_software_frame_id = frame->software_frame_data->id;
     }
     SendSwapCompositorFrameAck(routing_id_, process_->GetID(),
                                output_surface_id,  ack);
   }
   return true;
 }
 
 void RenderWidgetHostImpl::OnOverscrolled(
-    gfx::Vector2dF accumulated_overscroll,
-    gfx::Vector2dF current_fling_velocity) {
+    gfx::Vector2dF accumulated_overscroll) {
   if (view_)
-    view_->OnOverscrolled(accumulated_overscroll, current_fling_velocity);
+    view_->OnOverscrolled(accumulated_overscroll, gfx::Vector2dF());
 }
 
 void RenderWidgetHostImpl::OnUpdateRect(
     const ViewHostMsg_UpdateRect_Params& params) {
   TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::OnUpdateRect");
   TimeTicks paint_start = TimeTicks::Now();
 
   // Update our knowledge of the RenderWidget's size.
   current_size_ = params.view_size;
   // Update our knowledge of the RenderWidget's scroll offset.
@@ skipping 912 matching lines @@
         continue;
       }
       RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
       if (rwhi_set.insert(rwhi).second)
         rwhi->FrameSwapped(latency_info);
     }
   }
 }
 
 }  // namespace content