Add argument to pass elastic overscroll delta to Blink (Chrome side)

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 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.
 
 #include "content/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 799 matching lines @@
   if (temporary_copy_output_request_) {
     DCHECK(layer_tree_host_->root_layer());
     layer_tree_host_->root_layer()->RequestCopyOfOutput(
         temporary_copy_output_request_.Pass());
   }
 }
 
 void RenderWidgetCompositor::ApplyViewportDeltas(
     const gfx::Vector2d& inner_delta,
     const gfx::Vector2d& outer_delta,
+    const gfx::Vector2dF& elastic_overscroll_delta,
     float page_scale,
     float top_controls_delta) {
   widget_->webwidget()->applyViewportDeltas(
       inner_delta,
       outer_delta,
+      elastic_overscroll_delta,
       page_scale,
       top_controls_delta);
 }
 
 void RenderWidgetCompositor::ApplyViewportDeltas(
     const gfx::Vector2d& scroll_delta,
     float page_scale,
     float top_controls_delta) {
   widget_->webwidget()->applyViewportDeltas(
       scroll_delta,
@@ skipping 56 matching lines @@
   widget_->OnSwapBuffersAborted();
 }
 
 void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
   cc::ContextProvider* provider =
       RenderThreadImpl::current()->SharedMainThreadContextProvider().get();
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 }  // namespace content