Rename cc::ResourceProvider::ResourceId to cc::ResourceId and move it to its own file.

cc/trees/layer_tree_impl.cc

 // Copyright 2011 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/trees/layer_tree_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 
@@ skipping 1083 matching lines @@
 
 void LayerTreeImpl::DidModifyTilePriorities() {
   layer_tree_host_impl_->DidModifyTilePriorities();
 }
 
 void LayerTreeImpl::set_ui_resource_request_queue(
     const UIResourceRequestQueue& queue) {
   ui_resource_request_queue_ = queue;
 }
 
-ResourceProvider::ResourceId LayerTreeImpl::ResourceIdForUIResource(
-    UIResourceId uid) const {
+ResourceId LayerTreeImpl::ResourceIdForUIResource(UIResourceId uid) const {
   return layer_tree_host_impl_->ResourceIdForUIResource(uid);
 }
 
 bool LayerTreeImpl::IsUIResourceOpaque(UIResourceId uid) const {
   return layer_tree_host_impl_->IsUIResourceOpaque(uid);
 }
 
 void LayerTreeImpl::ProcessUIResourceRequestQueue() {
   for (const auto& req : ui_resource_request_queue_) {
     switch (req.GetType()) {
@@ skipping 452 matching lines @@
     scoped_ptr<PendingPageScaleAnimation> pending_animation) {
   pending_page_scale_animation_ = pending_animation.Pass();
 }
 
 scoped_ptr<PendingPageScaleAnimation>
     LayerTreeImpl::TakePendingPageScaleAnimation() {
   return pending_page_scale_animation_.Pass();
 }
 
 }  // namespace cc