Make cc::CompositorFrames movable [Part 2 of 2]

components/mus/gpu/display_compositor/compositor_frame_sink_impl.cc

 // Copyright 2016 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/mus/gpu/display_compositor/compositor_frame_sink_impl.h"
 
 #include "cc/ipc/compositor_frame.mojom.h"
 #include "cc/surfaces/surface_factory.h"
 #include "components/mus/gpu/display_compositor/compositor_frame_sink_delegate.h"
 #include "components/mus/public/cpp/surfaces/surfaces_type_converters.h"
@@ skipping 42 matching lines @@
     else
       begin_frame_source_->RemoveObserver(this);
   }
 }
 
 void CompositorFrameSinkImpl::SubmitCompositorFrame(
     cc::mojom::CompositorFramePtr frame,
     const SubmitCompositorFrameCallback& callback) {
   // TODO(fsamuel): Validate that SurfaceDrawQuad refer to allowable surface
   // IDs.
-  std::unique_ptr<cc::CompositorFrame> compositor_frame =
-      ConvertToCompositorFrame(frame);
+  cc::CompositorFrame compositor_frame = ConvertToCompositorFrame(frame);
   gfx::Size frame_size =
-      compositor_frame->delegated_frame_data->render_pass_list.back()
+      compositor_frame.delegated_frame_data->render_pass_list.back()
           ->output_rect.size();
   if (frame_size.IsEmpty() || frame_size != last_submitted_frame_size_) {
     if (!surface_id_.is_null())
       factory_.Destroy(surface_id_);
     // TODO(fsamuel): The allocator should live on CompositorFrameSinkFactory.
     surface_id_ = delegate_->GenerateSurfaceId();
     factory_.Create(surface_id_);
     last_submitted_frame_size_ = frame_size;
   }
   factory_.SubmitCompositorFrame(surface_id_, std::move(compositor_frame),
@@ skipping 31 matching lines @@
 void CompositorFrameSinkImpl::OnBeginFrameSourcePausedChanged(bool paused) {
   // TODO(fsamuel): Implement this.
 }
 
 void CompositorFrameSinkImpl::OnConnectionLost() {
   delegate_->CompositorFrameSinkConnectionLost(sink_id_);
 }
 
 }  // namespace gpu
 }  // namespace mus