Expose setting API to set ImageAnimationPolicy(Allowed, Once, None)

Source/core/frame/Settings.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 18 matching lines @@
 
 #include "bindings/core/v8/ScriptStreamingMode.h"
 #include "bindings/core/v8/V8CacheOptions.h"
 #include "core/SettingsMacros.h"
 #include "core/css/PointerProperties.h"
 #include "core/editing/EditingBehaviorTypes.h"
 #include "core/frame/SettingsDelegate.h"
 #include "platform/Timer.h"
 #include "platform/fonts/GenericFontFamilySettings.h"
 #include "platform/geometry/IntSize.h"
+#include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/HashSet.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class Settings {
     WTF_MAKE_NONCOPYABLE(Settings); WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassOwnPtr<Settings> create();
@@ skipping 32 matching lines @@
     bool m_openGLMultisamplingEnabled : 1;
     IntSize m_textAutosizingWindowSizeOverride;
     bool m_textAutosizingEnabled : 1;
 
     SETTINGS_MEMBER_VARIABLES
 };
 
 } // namespace blink
 
 #endif // Settings_h