Added a way for sync point clients to issue out of order waits.

gpu/command_buffer/service/in_process_command_buffer.cc

Index: gpu/command_buffer/service/in_process_command_buffer.cc
diff --git a/gpu/command_buffer/service/in_process_command_buffer.cc b/gpu/command_buffer/service/in_process_command_buffer.cc
index b2588b47a2cb2f0048c03d3fca665b4b1ea9f69e..968149b0dab63fa01ca66f623f3197898907582e 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.cc
+++ b/gpu/command_buffer/service/in_process_command_buffer.cc
@@ -949,8 +949,8 @@ void InProcessCommandBuffer::SignalSyncTokenOnGpuThread(
     return;
   }
 
-  sync_point_client_->Wait(release_state.get(), sync_token.release_count(),
-                           WrapCallback(callback));
+  sync_point_client_->WaitOutOfOrder(
+      release_state.get(), sync_token.release_count(), WrapCallback(callback));
 }
 
 void InProcessCommandBuffer::SignalQuery(unsigned query_id,