Always enable FCM on Windows.

content/public/common/content_switches.h

 // 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.
 
 // Defines all the "content" command-line switches.
 
 #ifndef CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_
 #define CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 196 matching lines @@
 CONTENT_EXPORT extern const char kRendererAssertTest[];
 extern const char kRendererCmdPrefix[];
 CONTENT_EXPORT extern const char kRendererProcess[];
 extern const char kRendererProcessLimit[];
 extern const char kRendererStartupDialog[];
 CONTENT_EXPORT extern const char kScrollEndEffect[];
 extern const char kShowPaintRects[];
 CONTENT_EXPORT extern const char kSimulateTouchScreenWithMouse[];
 CONTENT_EXPORT extern const char kSingleProcess[];
 CONTENT_EXPORT extern const char kSitePerProcess[];
-CONTENT_EXPORT extern const char kSkipGpuDataLoading[];
 extern const char kSpeechRecognitionWebserviceKey[];
 CONTENT_EXPORT extern const char kStatsCollectionController[];
 extern const char kTabCaptureDownscaleQuality[];
 extern const char kTabCaptureUpscaleQuality[];
 extern const char kTapDownDeferralTimeMs[];
 CONTENT_EXPORT extern const char kTestingFixedHttpPort[];
 CONTENT_EXPORT extern const char kTestingFixedHttpsPort[];
 CONTENT_EXPORT extern const char kTestSandbox[];
 CONTENT_EXPORT extern const char kNoTouchToRendererWhileScrolling[];
 extern const char kTraceStartup[];
@@ skipping 46 matching lines @@
 #endif
 
 #if defined(OS_POSIX)
 extern const char kChildCleanExit[];
 #endif
 
 #if defined(USE_AURA)
 CONTENT_EXPORT extern const char kTestCompositor[];
 #endif
 
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+CONTENT_EXPORT extern const char kSkipGpuDataLoading[];
+#endif
+
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 CONTENT_EXPORT extern const char kAllowFiltersOverIPC[];
 
 }  // namespace switches
 
 #endif  // CONTENT_PUBLIC_COMMON_CONTENT_SWITCHES_H_