gpu: Thread-safe command buffer state lookup.

gpu/command_buffer/common/cmd_buffer_common.cc

Index: gpu/command_buffer/common/cmd_buffer_common.cc
diff --git a/gpu/command_buffer/common/cmd_buffer_common.cc b/gpu/command_buffer/common/cmd_buffer_common.cc
index c9f4b164eeec9df8dee745525c4db976963ed7e1..bdb08f32cb968d25eac7eeb91c97750325b1f39a 100644
--- a/gpu/command_buffer/common/cmd_buffer_common.cc
+++ b/gpu/command_buffer/common/cmd_buffer_common.cc
@@ -32,17 +32,6 @@ const char* GetCommandName(CommandId command_id) {
 }
 
 }  // namespace cmd
-
-#if !defined(NACL_WIN64)
-// TODO(apatrick): this is a temporary optimization while skia is calling
-// RendererGLContext::MakeCurrent prior to every GL call. It saves returning 6
-// ints redundantly when only the error is needed for the CommandBufferProxy
-// implementation.
-error::Error CommandBuffer::GetLastError() {
-  return GetLastState().error;
-}
-#endif
-
 }  // namespace gpu