Update from https://crrev.com/320931

gpu/ipc/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 source_set("ipc") {
   sources = [
     "gpu_command_buffer_traits.cc",
     "gpu_command_buffer_traits.h",
   ]
 
-  defines = [ "GPU_IMPLEMENTATION" ]
-
-  configs += [ "//third_party/khronos:khronos_headers" ]
+  configs += [
+    "//gpu:gpu_implementation",
+    "//third_party/khronos:khronos_headers",
+  ]
 
   deps = [
     "//gpu/command_buffer/common",
     "//ipc",
   ]
 }