Make cc::CompositorFrames movable [Part 1 of 2]

content/browser/compositor/software_browser_compositor_output_surface.cc

 // Copyright 2014 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 "content/browser/compositor/software_browser_compositor_output_surface.h"
 
 #include <utility>
 
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
@@ skipping 16 matching lines @@
     : BrowserCompositorOutputSurface(std::move(software_device),
                                      vsync_manager,
                                      begin_frame_source),
       weak_factory_(this) {}
 
 SoftwareBrowserCompositorOutputSurface::
     ~SoftwareBrowserCompositorOutputSurface() {
 }
 
 void SoftwareBrowserCompositorOutputSurface::SwapBuffers(
-    cc::CompositorFrame* frame) {
+    std::unique_ptr<cc::CompositorFrame> frame) {
   base::TimeTicks swap_time = base::TimeTicks::Now();
   for (auto& latency : frame->metadata.latency_info) {
     latency.AddLatencyNumberWithTimestamp(
         ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0, 0, swap_time, 1);
     latency.AddLatencyNumberWithTimestamp(
         ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0,
         swap_time, 1);
   }
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&RenderWidgetHostImpl::CompositorFrameDrawn,
@@ skipping 28 matching lines @@
   NOTREACHED();
 }
 
 #if defined(OS_MACOSX)
 void SoftwareBrowserCompositorOutputSurface::SetSurfaceSuspendedForRecycle(
     bool suspended) {
 }
 #endif
 
 }  // namespace content