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

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index 58ea47d3caeab287c684db9946a971dbe6368b04..5bba8e520e5344e398fb3c28f0e6f2aaac45feb7 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -2782,6 +2782,15 @@ bool RenderObject::willRenderImage(ImageResource*)
     return document().view()->isVisible();
 }
 
+bool RenderObject::getImageAnimationPolicy(ImageResource*, ImageAnimationPolicy& policy)
+{
+    if (document().settings()) {

[tkent, 2014/12/01 01:45:34]

nit: We prefer early return.

if (!document().settings())
    return false;

[je_julie(Not used), 2014/12/01 05:29:24]

Done.

+        policy = document().settings()->imageAnimationPolicy();
+        return true;
+    }
+    return false;
+}
+
 int RenderObject::caretMinOffset() const
 {
     return 0;