Add shared bitmap managers for browser and renderer processes.

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>
 
 #include "base/memory/shared_memory.h"
 #include "base/tracked_objects.h"
 #include "base/values.h"
+#include "cc/resources/shared_bitmap_manager.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_message_macros.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 IPC_ENUM_TRAITS_MAX_VALUE(tracked_objects::ThreadData::Status,
                           tracked_objects::ThreadData::STATUS_LAST)
 
 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::LocationSnapshot)
   IPC_STRUCT_TRAITS_MEMBER(file_name)
   IPC_STRUCT_TRAITS_MEMBER(function_name)
@@ skipping 115 matching lines @@
 // Release the cached font
 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_ReleaseCachedFonts)
 #endif  // defined(OS_WIN)
 
 // Asks the browser to create a block of shared memory for the child process to
 // fill in and pass back to the browser.
 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_SyncAllocateSharedMemory,
                             uint32 /* buffer size */,
                             base::SharedMemoryHandle)
 
+// Asks the browser to create a block of shared memory for the child process to
+// fill in and pass back to the browser.
+IPC_SYNC_MESSAGE_CONTROL2_1(ChildProcessHostMsg_SyncAllocateSharedBitmap,
+                            uint32 /* buffer size */,
+                            cc::SharedBitmapId,
+                            base::SharedMemoryHandle)
+
+// Informs the browser that the child allocated a shared bitmap.
+IPC_MESSAGE_CONTROL3(ChildProcessHostMsg_AllocatedSharedBitmap,
+                     uint32 /* buffer size */,
+                     base::SharedMemoryHandle,
+                     cc::SharedBitmapId)
+
+// Informs the browser that the child deleted a shared bitmap.
+IPC_MESSAGE_CONTROL1(ChildProcessHostMsg_DeletedSharedBitmap,
+                     cc::SharedBitmapId)
+
 #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_CONTROL3_1(ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
                             uint32 /* width */,
                             uint32 /* height */,
                             uint32 /* internalformat */,
                             gfx::GpuMemoryBufferHandle)