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

content/browser/compositor/gpu_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/gpu_browser_compositor_output_surface.h"
 
 #include <utility>
 
 #include "build/build_config.h"
 #include "cc/output/compositor_frame.h"
@@ skipping 61 matching lines @@
 
 void GpuBrowserCompositorOutputSurface::OnReflectorChanged() {
   if (!reflector_) {
     reflector_texture_.reset();
   } else {
     reflector_texture_.reset(new ReflectorTexture(context_provider()));
     reflector_->OnSourceTextureMailboxUpdated(reflector_texture_->mailbox());
   }
 }
 
-void GpuBrowserCompositorOutputSurface::SwapBuffers(
-    cc::CompositorFrame* frame) {
-  DCHECK(frame->gl_frame_data);
+void GpuBrowserCompositorOutputSurface::SwapBuffers(cc::CompositorFrame frame) {
+  DCHECK(frame.gl_frame_data);
 
-  GetCommandBufferProxy()->SetLatencyInfo(frame->metadata.latency_info);
+  GetCommandBufferProxy()->SetLatencyInfo(frame.metadata.latency_info);
 
   if (reflector_) {
-    if (frame->gl_frame_data->sub_buffer_rect ==
-        gfx::Rect(frame->gl_frame_data->size)) {
+    if (frame.gl_frame_data->sub_buffer_rect ==
+        gfx::Rect(frame.gl_frame_data->size)) {
       reflector_texture_->CopyTextureFullImage(SurfaceSize());
       reflector_->OnSourceSwapBuffers();
     } else {
-      const gfx::Rect& rect = frame->gl_frame_data->sub_buffer_rect;
+      const gfx::Rect& rect = frame.gl_frame_data->sub_buffer_rect;
       reflector_texture_->CopyTextureSubImage(rect);
       reflector_->OnSourcePostSubBuffer(rect);
     }
   }
 
-  if (frame->gl_frame_data->sub_buffer_rect ==
-      gfx::Rect(frame->gl_frame_data->size)) {
+  if (frame.gl_frame_data->sub_buffer_rect ==
+      gfx::Rect(frame.gl_frame_data->size)) {
     context_provider_->ContextSupport()->Swap();
   } else {
     context_provider_->ContextSupport()->PartialSwapBuffers(
-        frame->gl_frame_data->sub_buffer_rect);
+        frame.gl_frame_data->sub_buffer_rect);
   }
 
   client_->DidSwapBuffers();
 }
 
 void GpuBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
     const std::vector<ui::LatencyInfo>& latency_info,
     gfx::SwapResult result,
     const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) {
   RenderWidgetHostImpl::CompositorFrameDrawn(latency_info);
   OnSwapBuffersComplete();
 }
 
 #if defined(OS_MACOSX)
 void GpuBrowserCompositorOutputSurface::SetSurfaceSuspendedForRecycle(
     bool suspended) {}
 #endif
 
 }  // namespace content