gpu: Compositor management of GpuMemoryBuffer instances.

content/common/child_process_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.
 
 // Common IPC messages used for child processes.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 #include <vector>
 
@@ skipping 69 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(io_surface_id)
 #endif
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(surface_texture_id)
 #endif
 #if defined(USE_X11)
   IPC_STRUCT_TRAITS_MEMBER(pixmap)
 #endif
 IPC_STRUCT_TRAITS_END()
 
+IPC_ENUM_TRAITS_MAX_VALUE(gfx::GpuMemoryBuffer::Format,
+                          gfx::GpuMemoryBuffer::FORMAT_LAST)
+
+IPC_ENUM_TRAITS_MAX_VALUE(gfx::GpuMemoryBuffer::Usage,
+                          gfx::GpuMemoryBuffer::USAGE_LAST)
+
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START ChildProcessMsgStart
 
 // Messages sent from the browser to the child process.
 
 // Sent in response to ChildProcessHostMsg_ShutdownRequest to tell the child
 // process that it's safe to shutdown.
 IPC_MESSAGE_CONTROL0(ChildProcessMsg_Shutdown)
@@ skipping 90 matching lines @@
 #if defined(USE_TCMALLOC)
 // Reply to ChildProcessMsg_GetTcmallocStats.
 IPC_MESSAGE_CONTROL1(ChildProcessHostMsg_TcmallocStats,
                      std::string /* output */)
 #endif
 
 // Asks the browser to create a gpu memory buffer.
 IPC_SYNC_MESSAGE_CONTROL4_1(ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
                             uint32 /* width */,
                             uint32 /* height */,
-                            uint32 /* internalformat */,
-                            uint32 /* usage */,
+                            gfx::GpuMemoryBuffer::Format,
+                            gfx::GpuMemoryBuffer::Usage,
                             gfx::GpuMemoryBufferHandle)
 
 // Informs the browser that the child deleted a gpu memory buffer.
 IPC_MESSAGE_CONTROL2(ChildProcessHostMsg_DeletedGpuMemoryBuffer,
                      gfx::GpuMemoryBufferType,
                      gfx::GpuMemoryBufferId)