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

Source/platform/graphics/BitmapImage.h

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  *
  * 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.
@@ skipping 14 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef BitmapImage_h
 #define BitmapImage_h
 
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/FrameData.h"
 #include "platform/graphics/Image.h"
+#include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/graphics/ImageOrientation.h"
 #include "platform/graphics/ImageSource.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class NativeImageSkia;
 template <typename T> class Timer;
 
 class PLATFORM_EXPORT BitmapImage : public Image {
@@ skipping 128 matching lines @@
     Timer<BitmapImage>* m_frameTimer;
     int m_repetitionCount; // How many total animation loops we should do.  This will be cAnimationNone if this image type is incapable of animation.
     RepetitionCountStatus m_repetitionCountStatus;
     int m_repetitionsComplete;  // How many repetitions we've finished.
     double m_desiredFrameStartTime;  // The system time at which we hope to see the next call to startAnimation().
 
     Color m_solidColor;  // If we're a 1x1 solid color, this is the color to use to fill.
 
     size_t m_frameCount;
 
+    ImageAnimationPolicy m_animationPolicy; // Whether or not we can play animation.
+
     bool m_isSolidColor : 1; // Whether or not we are a 1x1 solid image.
     bool m_checkedForSolidColor : 1; // Whether we've checked the frame for solid color.
 
     bool m_animationFinished : 1; // Whether or not we've completed the entire animation.
 
     bool m_allDataReceived : 1; // Whether or not we've received all our data.
     mutable bool m_haveSize : 1; // Whether or not our |m_size| member variable has the final overall image size yet.
     bool m_sizeAvailable : 1; // Whether or not we can obtain the size of the first image frame yet from ImageIO.
     mutable bool m_hasUniformFrameSize : 1;
     mutable bool m_haveFrameCount : 1;
 };
 
 DEFINE_IMAGE_TYPE_CASTS(BitmapImage);
 
 } // namespace blink
 
 #endif