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

ppapi/proxy/resource_creation_proxy.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.
 
 #ifndef PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_
 #define PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 108 matching lines @@
                                PP_Bool is_always_opaque) override;
   PP_Resource CreateGraphics3D(PP_Instance instance,
                                PP_Resource share_context,
                                const int32_t* attrib_list) override;
   PP_Resource CreateGraphics3DRaw(
       PP_Instance instance,
       PP_Resource share_context,
       const int32_t* attrib_list,
       gpu::Capabilities* capabilities,
       base::SharedMemoryHandle* shared_state,
-      uint64_t* command_buffer_id) override;
+      gpu::CommandBufferId* command_buffer_id) override;
   PP_Resource CreateHostResolver(PP_Instance instance) override;
   PP_Resource CreateHostResolverPrivate(PP_Instance instance) override;
   PP_Resource CreateImageData(PP_Instance instance,
                               PP_ImageDataFormat format,
                               const PP_Size* size,
                               PP_Bool init_to_zero) override;
   PP_Resource CreateImageDataSimple(PP_Instance instance,
                                     PP_ImageDataFormat format,
                                     const PP_Size* size,
                                     PP_Bool init_to_zero) override;
@@ skipping 50 matching lines @@
 
  private:
   Connection GetConnection();
   DISALLOW_COPY_AND_ASSIGN(ResourceCreationProxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_