make disable-glsl-translator work again

gpu/command_buffer/service/gpu_switches.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/command_buffer/service/gpu_switches.h"
 
 namespace switches {
 
 // Turn on Calling GL Error after every command.
 const char kCompileShaderAlwaysSucceeds[]   = "compile-shader-always-succeeds";
 
+// Disable the GLSL translator.
+const char kDisableGLSLTranslator[]         = "disable-glsl-translator";
+
+// Turn on Logging GPU commands.
+const char kEnableGPUCommandLogging[]       = "enable-gpu-command-logging";
+
 // Turn on Calling GL Error after every command.
 const char kEnableGPUDebugging[]            = "enable-gpu-debugging";
 
 }  // namespace switches