tracing: Make ConvertableToTraceFormat move-only scoped_ptr

components/exo/surface.cc

 // Copyright 2015 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 "components/exo/surface.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
@@ skipping 425 matching lines @@
 }
 
 void Surface::RemoveSurfaceObserver(SurfaceObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 bool Surface::HasSurfaceObserver(const SurfaceObserver* observer) const {
   return observers_.HasObserver(observer);
 }
 
-scoped_refptr<base::trace_event::TracedValue> Surface::AsTracedValue() const {
-  scoped_refptr<base::trace_event::TracedValue> value =
-      new base::trace_event::TracedValue;
+scoped_ptr<base::trace_event::TracedValue> Surface::AsTracedValue() const {
+  scoped_ptr<base::trace_event::TracedValue> value(
+      new base::trace_event::TracedValue());
   value->SetString("name", layer()->name());
   return value;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // aura::WindowObserver overrides:
 
 void Surface::OnWindowAddedToRootWindow(aura::Window* window) {
   DCHECK(!compositor_);
   compositor_ = layer()->GetCompositor();
@@ skipping 57 matching lines @@
   // of the surface next time the compositor successfully ends compositing.
   update_contents_after_successful_compositing_ = true;
 }
 
 void Surface::OnCompositingShuttingDown(ui::Compositor* compositor) {
   compositor->RemoveObserver(this);
   compositor_ = nullptr;
 }
 
 }  // namespace exo