cc: return resources via a ReturnedResource struct rather than TransferableResource

content/common/cc_messages.h

 // Copyright (c) 2012 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.
 //
 // IPC Messages sent between compositor instances.
 
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "cc/output/filter_operation.h"
 #include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/quads/debug_border_draw_quad.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/quads/io_surface_draw_quad.h"
 #include "cc/quads/picture_draw_quad.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
+#include "cc/resources/returned_resource.h"
 #include "cc/resources/transferable_resource.h"
 #include "content/common/content_export.h"
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "ipc/ipc_message_macros.h"
 
 #ifndef CONTENT_COMMON_CC_MESSAGES_H_
 #define CONTENT_COMMON_CC_MESSAGES_H_
 
 namespace gfx {
 class Transform;
@@ skipping 180 matching lines @@
 
 IPC_STRUCT_TRAITS_BEGIN(cc::TransferableResource)
   IPC_STRUCT_TRAITS_MEMBER(id)
   IPC_STRUCT_TRAITS_MEMBER(sync_point)
   IPC_STRUCT_TRAITS_MEMBER(format)
   IPC_STRUCT_TRAITS_MEMBER(filter)
   IPC_STRUCT_TRAITS_MEMBER(size)
   IPC_STRUCT_TRAITS_MEMBER(mailbox)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(cc::ReturnedResource)
+  IPC_STRUCT_TRAITS_MEMBER(id)
+  IPC_STRUCT_TRAITS_MEMBER(sync_point)
+  IPC_STRUCT_TRAITS_MEMBER(filter)
+  IPC_STRUCT_TRAITS_MEMBER(count)
+IPC_STRUCT_TRAITS_END()
+
 IPC_STRUCT_TRAITS_BEGIN(cc::BeginFrameArgs)
   IPC_STRUCT_TRAITS_MEMBER(frame_time)
   IPC_STRUCT_TRAITS_MEMBER(deadline)
   IPC_STRUCT_TRAITS_MEMBER(interval)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(cc::CompositorFrameMetadata)
   IPC_STRUCT_TRAITS_MEMBER(device_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(root_scroll_offset)
   IPC_STRUCT_TRAITS_MEMBER(page_scale_factor)
@@ skipping 13 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(size)
   IPC_STRUCT_TRAITS_MEMBER(sub_buffer_rect)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(cc::SoftwareFrameData)
   IPC_STRUCT_TRAITS_MEMBER(id)
   IPC_STRUCT_TRAITS_MEMBER(size)
   IPC_STRUCT_TRAITS_MEMBER(damage_rect)
   IPC_STRUCT_TRAITS_MEMBER(handle)
 IPC_STRUCT_TRAITS_END()