Replace scoped_ptr with std::unique_ptr in //ui

cc/trees/layer_tree_host_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_host_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 3317 matching lines @@
   client_->SetNeedsCommitOnImplThread();
   // When a pinch ends, we may be displaying content cached at incorrect scales,
   // so updating draw properties and drawing will ensure we are using the right
   // scales that we want when we're not inside a pinch.
   active_tree_->set_needs_update_draw_properties();
   SetNeedsRedraw();
 }
 
 std::unique_ptr<BeginFrameCallbackList>
 LayerTreeHostImpl::ProcessLayerTreeMutations() {
-  auto callbacks = make_scoped_ptr(new BeginFrameCallbackList());
+  std::unique_ptr<BeginFrameCallbackList> callbacks(new BeginFrameCallbackList);
   if (mutator_) {
     const base::Closure& callback = mutator_->TakeMutations();
     if (!callback.is_null())
       callbacks->push_back(callback);
   }
   return callbacks;
 }
 
 static void CollectScrollDeltas(ScrollAndScaleSet* scroll_info,
                                 LayerImpl* root_layer) {
@@ skipping 627 matching lines @@
   return task_runner_provider_->HasImplThread();
 }
 
 bool LayerTreeHostImpl::CommitToActiveTree() const {
   // In single threaded mode we skip the pending tree and commit directly to the
   // active tree.
   return !task_runner_provider_->HasImplThread();
 }
 
 }  // namespace cc