GPUChannel pools mailbox names.

content/common/gpu/gpu_channel.cc

Index: content/common/gpu/gpu_channel.cc
===================================================================
--- content/common/gpu/gpu_channel.cc	(revision 166793)
+++ content/common/gpu/gpu_channel.cc	(working copy)
@@ -172,6 +172,8 @@
     IPC_BEGIN_MESSAGE_MAP(MailboxMessageFilter, message)
       IPC_MESSAGE_HANDLER(GpuChannelMsg_GenerateMailboxNames,
                           OnGenerateMailboxNames)
+      IPC_MESSAGE_HANDLER(GpuChannelMsg_GenerateMailboxNamesAsync,
+                          OnGenerateMailboxNamesAsync)
       IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
 
@@ -206,6 +208,12 @@
     }
   }
 
+  void OnGenerateMailboxNamesAsync(unsigned num) {
+    std::vector<std::string> names;
+    OnGenerateMailboxNames(num, &names);
+    Send(new GpuChannelMsg_GenerateMailboxNamesReply(names));
+  }
+
   IPC::Channel* channel_;
   crypto::HMAC hmac_;
 };