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

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index 096bf107b25b283fb5dfb1cdf72eea66113c8b04..2f98c94a084fbae0974b32e7377904ca6915e6bd 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -2717,10 +2717,10 @@ void GLRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) {
 
   gfx::Size surface_size = output_surface_->SurfaceSize();
 
-  CompositorFrame compositor_frame;
-  compositor_frame.metadata = metadata;
-  compositor_frame.gl_frame_data = base::WrapUnique(new GLFrameData);
-  compositor_frame.gl_frame_data->size = surface_size;
+  std::unique_ptr<CompositorFrame> compositor_frame(CompositorFrame::Create());
+  compositor_frame->metadata = metadata;
+  compositor_frame->gl_frame_data = base::WrapUnique(new GLFrameData);
+  compositor_frame->gl_frame_data->size = surface_size;
   if (capabilities_.using_partial_swap) {
     // If supported, we can save significant bandwidth by only swapping the
     // damaged/scissored region (clamped to the viewport).
@@ -2728,7 +2728,7 @@ void GLRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) {
     int flipped_y_pos_of_rect_bottom = surface_size.height() -
                                        swap_buffer_rect_.y() -
                                        swap_buffer_rect_.height();
-    compositor_frame.gl_frame_data->sub_buffer_rect =
+    compositor_frame->gl_frame_data->sub_buffer_rect =
         gfx::Rect(swap_buffer_rect_.x(),
                   FlippedRootFramebuffer() ? flipped_y_pos_of_rect_bottom
                                            : swap_buffer_rect_.y(),
@@ -2739,7 +2739,7 @@ void GLRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) {
     if (!swap_buffer_rect_.IsEmpty() || !capabilities_.allow_empty_swap) {
       swap_buffer_rect_ = gfx::Rect(surface_size);
     }
-    compositor_frame.gl_frame_data->sub_buffer_rect = swap_buffer_rect_;
+    compositor_frame->gl_frame_data->sub_buffer_rect = swap_buffer_rect_;
   }
 
   swapping_overlay_resources_.push_back(std::move(pending_overlay_resources_));
@@ -2752,7 +2752,7 @@ void GLRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) {
     swapping_overlay_resources_.pop_front();
   }
 
-  output_surface_->SwapBuffers(&compositor_frame);
+  output_surface_->SwapBuffers(std::move(compositor_frame));
 
   swap_buffer_rect_ = gfx::Rect();
 }