Introducing gpu::CommandBufferId as a distinct, IdType<...>-based type.

ppapi/proxy/ppapi_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.
 
 // Multiply-included message header, no traditional include guard.
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
 #include "base/sync_socket.h"
 #include "build/build_config.h"
 #include "gpu/command_buffer/common/command_buffer.h"
+#include "gpu/command_buffer/common/command_buffer_id.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/common/sync_token.h"
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_message_utils.h"
 #include "ipc/ipc_platform_file.h"
 #include "ppapi/c/dev/pp_video_capture_dev.h"
 #include "ppapi/c/dev/pp_video_dev.h"
 #include "ppapi/c/dev/ppb_truetype_font_dev.h"
@@ skipping 978 matching lines @@
                     ppapi::HostResource)
 
 // PPB_Graphics3D.
 IPC_SYNC_MESSAGE_ROUTED3_4(PpapiHostMsg_PPBGraphics3D_Create,
                            PP_Instance /* instance */,
                            ppapi::HostResource /* share_context */,
                            std::vector<int32_t> /* attrib_list */,
                            ppapi::HostResource /* result */,
                            gpu::Capabilities /* capabilities */,
                            ppapi::proxy::SerializedHandle /* shared_state */,
-                           uint64_t /* command_buffer_id */)
+                           gpu::CommandBufferId /* command_buffer_id */)
 IPC_SYNC_MESSAGE_ROUTED2_0(PpapiHostMsg_PPBGraphics3D_SetGetBuffer,
                            ppapi::HostResource /* context */,
                            int32_t /* transfer_buffer_id */)
 IPC_SYNC_MESSAGE_ROUTED3_2(PpapiHostMsg_PPBGraphics3D_WaitForTokenInRange,
                            ppapi::HostResource /* context */,
                            int32_t /* start */,
                            int32_t /* end */,
                            gpu::CommandBuffer::State /* state */,
                            bool /* success */)
 IPC_SYNC_MESSAGE_ROUTED3_2(PpapiHostMsg_PPBGraphics3D_WaitForGetOffsetInRange,
@@ skipping 1401 matching lines @@
                      std::vector<ppapi::HostResource> /* buffers */,
                      uint32_t /* buffer_size */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_VideoCapture_OnStatus,
                      uint32_t /* status */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_VideoCapture_OnError,
                      uint32_t /* error */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_VideoCapture_OnBufferReady,
                      uint32_t /* buffer */)
 
 #endif  // !defined(OS_NACL) && !defined(NACL_WIN64)