Set USE(NATIVE_FULLSCREEN_VIDEO) in config.h instead of a gyp file

Source/config.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2013 Apple Inc.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 78 matching lines @@
 #endif
 
 /* There is an assumption in the project that either OS(WIN) or OS(POSIX) is set. */
 #if !OS(WIN) && !OS(POSIX)
 #error Either OS(WIN) or OS(POSIX) needs to be set.
 #endif
 
 /* Operating environments */
 
 #if OS(ANDROID)
+#define WTF_USE_NATIVE_FULLSCREEN_VIDEO 1
 #define WTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION 1
 #define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_DITHERING 1
 #define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_FANCY_UPSAMPLING 1
 #else
 #define WTF_USE_ICCJPEG 1
 #define WTF_USE_QCMSLIB 1
 #endif
 
 #if OS(MACOSX)
 #define WTF_USE_CF 1
@@ skipping 66 matching lines @@
 #define SKIP_STATIC_CONSTRUCTORS_ON_GCC 1
 #endif
 
 #ifndef __STDC_FORMAT_MACROS
 #define __STDC_FORMAT_MACROS 1
 #endif
 
 #if OS(LINUX) || OS(ANDROID)
 #define WTF_USE_HARFBUZZ 1
 #endif