Add new extension APIs related to animation policy.

chrome/common/extensions/api/accessibility_private.json

Index: chrome/common/extensions/api/accessibility_private.json
diff --git a/chrome/common/extensions/api/accessibility_private.json b/chrome/common/extensions/api/accessibility_private.json
index c51ea31327eb745f060440b6b628be3ec6a4e678..8fe77471174c939b73f97a978bbfb168c46ccc98 100644
--- a/chrome/common/extensions/api/accessibility_private.json
+++ b/chrome/common/extensions/api/accessibility_private.json
@@ -209,6 +209,35 @@
         ]
       },
       {
+        "name": "getImageAnimationPolicy",
+        "type": "function",
+        "description": "Get the policy for handling animated images in web contents.",
+        "parameters": [
+          {
+            "type": "function",
+            "name": "callback",
+            "parameters": [
+              {
+                "type": "string",

[dmazzoni, 2014/12/08 07:46:01]

Make the possible values for this type explicit using "enum":

"enum": ["allowed", "once", "none"]

...and the same below for setImageAnimationPolicy

+                "name": "policy"
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name": "setImageAnimationPolicy",
+        "type": "function",
+        "description": "Set the policy for handling animated images in web contents.",
+        "parameters": [
+          {
+            "type": "string",
+            "name": "policy",
+            "description": "The policy for animated images, Allowed, Once and None"
+          }
+        ]
+      },
+      {
         "name": "setNativeAccessibilityEnabled",
         "type": "function",
         "description": "Enables or disables native accessibility support. Once disabled, it is up to the calling extension to provide accessibility for web contents.",