tracing: Make ConvertableToTraceFormat move-only scoped_ptr

ui/compositor/layer.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 "ui/compositor/layer.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 786 matching lines @@
   if (force_render_surface_ == force)
     return;
 
   force_render_surface_ = force;
   cc_layer_->SetForceRenderSurface(force_render_surface_);
 }
 
 class LayerDebugInfo : public base::trace_event::ConvertableToTraceFormat {
  public:
   explicit LayerDebugInfo(const std::string& name) : name_(name) {}
+  ~LayerDebugInfo() override {}
   void AppendAsTraceFormat(std::string* out) const override {
     base::DictionaryValue dictionary;
     dictionary.SetString("layer_name", name_);
     base::JSONWriter::Write(dictionary, out);
   }
 
  private:
-  ~LayerDebugInfo() override {}
   std::string name_;
 };
 
-scoped_refptr<base::trace_event::ConvertableToTraceFormat> Layer::TakeDebugInfo(
+scoped_ptr<base::trace_event::ConvertableToTraceFormat> Layer::TakeDebugInfo(
     cc::Layer* layer) {
-  return new LayerDebugInfo(name_);
+  return make_scoped_ptr(new LayerDebugInfo(name_));
 }
 
 void Layer::CollectAnimators(
     std::vector<scoped_refptr<LayerAnimator>>* animators) {
   if (animator_ && animator_->is_animating())
     animators->push_back(animator_);
   for (auto* child : children_)
     child->CollectAnimators(animators);
 }
 
@@ skipping 267 matching lines @@
     animator_->ResetCompositor(compositor);
     if (animator_->is_animating())
       animator_->RemoveFromCollection(collection);
   }
 
   for (auto* child : children_)
     child->ResetCompositorForAnimatorsInTree(compositor);
 }
 
 }  // namespace ui