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

cc/surfaces/display.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 "cc/surfaces/display.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 289 matching lines @@
   bool should_swap = should_draw && size_matches;
   if (should_swap) {
     swapped_since_resize_ = true;
     for (auto& latency : frame->metadata.latency_info) {
       TRACE_EVENT_WITH_FLOW1("input,benchmark", "LatencyInfo.Flow",
           TRACE_ID_DONT_MANGLE(latency.trace_id()),
           TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT,
           "step", "Display::DrawAndSwap");
     }
     benchmark_instrumentation::IssueDisplayRenderingStatsEvent();
-    renderer_->SwapBuffers(frame->metadata);
+    renderer_->SwapBuffers(std::move(frame->metadata));
   } else {
     if (have_damage && !size_matches)
       aggregator_->SetFullDamageForSurface(current_surface_id_);
     TRACE_EVENT_INSTANT0("cc", "Swap skipped.", TRACE_EVENT_SCOPE_THREAD);
     stored_latency_info_.insert(stored_latency_info_.end(),
                                 frame->metadata.latency_info.begin(),
                                 frame->metadata.latency_info.end());
     DidSwapBuffers();
     DidSwapBuffersComplete();
   }
@@ skipping 89 matching lines @@
 
   if (surface_id == current_surface_id_)
     UpdateRootSurfaceResourcesLocked();
 }
 
 SurfaceId Display::CurrentSurfaceId() {
   return current_surface_id_;
 }
 
 }  // namespace cc