Add new extension APIs related to animation policy.

content/public/common/web_preferences.h

Index: content/public/common/web_preferences.h
diff --git a/content/public/common/web_preferences.h b/content/public/common/web_preferences.h
index ab43cd90a57bb76e552c3d84d7ba3148cb2021e9..2859cbfd5ebb5e8cddff4fb8800508fae1a4d556 100644
--- a/content/public/common/web_preferences.h
+++ b/content/public/common/web_preferences.h
@@ -58,6 +58,12 @@ enum V8ScriptStreamingMode {
       V8_SCRIPT_STREAMING_MODE_ALL_PLUS_BLOCK_PARSER_BLOCKING
 };
 
+enum ImageAnimationPolicy {
+  IMAGE_ANIMATION_POLICY_ALLOWED,
+  IMAGE_ANIMATION_POLICY_ANIMATION_ONCE,
+  IMAGE_ANIMATION_POLICY_NO_ANIMATION

[jam, 2015/01/28 20:29:58]

documentation here would be nice

[je_julie(Not used), 2015/01/30 15:58:06]

Done.

+};
+
 // The ISO 15924 script code for undetermined script aka Common. It's the
 // default used on WebKit's side to get/set a font setting when no script is
 // specified.
@@ -194,6 +200,7 @@ struct CONTENT_EXPORT WebPreferences {
   // This flag indicates whether H/W accelerated video decode is enabled for
   // pepper plugins. Defaults to false.
   bool pepper_accelerated_video_decode_enabled;
+  ImageAnimationPolicy animation_policy;

[jam, 2015/01/28 20:29:58]

nit: separate this from the previous line. or just move it to 192

 
 #if defined(OS_ANDROID)
   bool text_autosizing_enabled;