Send compositor frame IPC with metadata.

content/common/view_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 for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
+#include "cc/compositor_frame.h"
+#include "cc/compositor_frame_ack.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/edit_command.h"
 #include "content/common/navigation_gesture.h"
 #include "content/common/pepper_renderer_instance_data.h"
 #include "content/common/view_message_enums.h"
 #include "content/port/common/input_event_ack_state.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/file_chooser_params.h"
@@ skipping 2225 matching lines @@
 // This message is synthesized by GpuProcessHost to pass through a swap message
 // to the RenderWidgetHelper. This allows GetBackingStore to block for either a
 // software or GPU frame.
 IPC_MESSAGE_ROUTED5(ViewHostMsg_CompositorSurfaceBuffersSwapped,
                     int32 /* surface id */,
                     uint64 /* surface_handle */,
                     int32 /* route_id */,
                     gfx::Size /* size */,
                     int32 /* gpu_process_host_id */)
 
+IPC_MESSAGE_ROUTED1(ViewHostMsg_SwapCompositorFrame,
+                    cc::CompositorFrame /* frame */)
+IPC_MESSAGE_ROUTED1(ViewHostMsg_SwapCompositorFrameAck,
+                    cc::CompositorFrameAck /* ack */)
+
 // Opens a file asynchronously. The response returns a file descriptor
 // and an error code from base/platform_file.h.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_AsyncOpenFile,
                     FilePath /* file path */,
                     int /* flags */,
                     int /* message_id */)
 
 //---------------------------------------------------------------------------
 // Request for cryptographic operation messages:
 // These are messages from the renderer to the browser to perform a
@@ skipping 186 matching lines @@
                      int /* arb_robustness_status_code */)
 
 #if defined(OS_WIN)
 // Request that the given font characters be loaded by the browser so it's
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             string16 /* characters */)
 #endif