Make LayerScrollOffsetDelegate updates consistent.

cc/layers/layer_impl.cc

 // Copyright 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 "cc/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
 #include "cc/animation/animation_registrar.h"
@@ skipping 1056 matching lines @@
                                        float* contents_scale_y,
                                        gfx::Size* content_bounds) {
   // Base LayerImpl has all of its content scales and content bounds pushed
   // from its Layer during commit and just reuses those values as-is.
   *contents_scale_x = this->contents_scale_x();
   *contents_scale_y = this->contents_scale_y();
   *content_bounds = this->content_bounds();
 }
 
 void LayerImpl::SetScrollOffsetDelegate(
-    LayerScrollOffsetDelegate* scroll_offset_delegate) {
+    ScrollOffsetDelegate* scroll_offset_delegate) {
   // Having both a scroll parent and a scroll offset delegate is unsupported.
   DCHECK(!scroll_parent_);
   if (!scroll_offset_delegate && scroll_offset_delegate_) {
     scroll_delta_ =
         scroll_offset_delegate_->GetTotalScrollOffset() - scroll_offset_;
   }
   gfx::Vector2dF total_offset = TotalScrollOffset();
   scroll_offset_delegate_ = scroll_offset_delegate;
   if (scroll_offset_delegate_)
     scroll_offset_delegate_->SetTotalScrollOffset(total_offset);
@@ skipping 419 matching lines @@
 scoped_ptr<base::Value> LayerImpl::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   AsValueInto(state.get());
   return state.PassAs<base::Value>();
 }
 
 void LayerImpl::RunMicroBenchmark(MicroBenchmarkImpl* benchmark) {
   benchmark->RunOnLayer(this);
 }
 }  // namespace cc