Add shared bitmap managers for browser and renderer processes.

content/common/child_process_messages.h

Index: content/common/child_process_messages.h
diff --git a/content/common/child_process_messages.h b/content/common/child_process_messages.h
index 5700c4884b31de9a862a89a3a885612f7e5ba3d2..f220891c9b8ecefca7b849f65038860b9063c8b0 100644
--- a/content/common/child_process_messages.h
+++ b/content/common/child_process_messages.h
@@ -11,6 +11,7 @@
 #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"
@@ -146,6 +147,23 @@ 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,