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

components/mus/surfaces/display_compositor.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/surfaces/display_compositor.h"
 
 #include "cc/output/copy_output_request.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/renderer_settings.h"
 #include "cc/output/texture_mailbox_deleter.h"
@@ skipping 63 matching lines @@
       base::MakeUnique<cc::TextureMailboxDeleter>(task_runner_.get())));
   display_->Initialize(this);
 }
 
 DisplayCompositor::~DisplayCompositor() {
   surfaces_state_->manager()->UnregisterSurfaceFactoryClient(
       allocator_.id_namespace());
 }
 
 void DisplayCompositor::SubmitCompositorFrame(
-    std::unique_ptr<cc::CompositorFrame> frame,
+    cc::CompositorFrame frame,
     const base::Callback<void(cc::SurfaceDrawStatus)>& callback) {
   gfx::Size frame_size =
-      frame->delegated_frame_data->render_pass_list.back()->output_rect.size();
+      frame.delegated_frame_data->render_pass_list.back()->output_rect.size();
   if (frame_size.IsEmpty() || frame_size != display_size_) {
     if (!surface_id_.is_null())
       factory_.Destroy(surface_id_);
     surface_id_ = allocator_.GenerateId();
     factory_.Create(surface_id_);
     display_size_ = frame_size;
     display_->Resize(display_size_);
   }
-  display_->SetSurfaceId(surface_id_, frame->metadata.device_scale_factor);
+  display_->SetSurfaceId(surface_id_, frame.metadata.device_scale_factor);
   factory_.SubmitCompositorFrame(surface_id_, std::move(frame), callback);
 }
 
 void DisplayCompositor::RequestCopyOfOutput(
     std::unique_ptr<cc::CopyOutputRequest> output_request) {
   factory_.RequestCopyOfSurface(surface_id_, std::move(output_request));
 }
 
 void DisplayCompositor::ReturnResources(
     const cc::ReturnedResourceArray& resources) {
   // TODO(fsamuel): Implement this.
 }
 
 void DisplayCompositor::SetBeginFrameSource(
     cc::BeginFrameSource* begin_frame_source) {
   // TODO(fsamuel): Implement this.
 }
 
 void DisplayCompositor::DisplayOutputSurfaceLost() {
   // TODO(fsamuel): This looks like it would crash if a frame was in flight and
   // will be submitted.
   display_.reset();
 }
 
 void DisplayCompositor::DisplaySetMemoryPolicy(
     const cc::ManagedMemoryPolicy& policy) {}
 
 }  // namespace mus