gpu: Generate mailboxes on client side

content/common/gpu/client/command_buffer_proxy_impl.cc

Index: content/common/gpu/client/command_buffer_proxy_impl.cc
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.cc b/content/common/gpu/client/command_buffer_proxy_impl.cc
index c785dcbfb8f99d41e8e6906f257c41ac69524c3b..631eea96641ac85446e394e408e527a1982ef29c 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.cc
+++ b/content/common/gpu/client/command_buffer_proxy_impl.cc
@@ -521,15 +521,6 @@ void CommandBufferProxyImpl::SendManagedMemoryStats(
                                                             stats));
 }
 
-bool CommandBufferProxyImpl::GenerateMailboxNames(
-    unsigned num,
-    std::vector<gpu::Mailbox>* names) {
-  if (last_state_.error != gpu::error::kNoError)
-    return false;
-
-  return channel_->GenerateMailboxNames(num, names);
-}
-
 bool CommandBufferProxyImpl::ProduceFrontBuffer(const gpu::Mailbox& mailbox) {
   if (last_state_.error != gpu::error::kNoError)
     return false;