Add new extension APIs related to animation policy.

content/public/browser/browser_accessibility_state.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_ACCESSIBILITY_STATE_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_ACCESSIBILITY_STATE_H_
 
 #include "base/callback_forward.h"
 
 #include "content/common/content_export.h"
@@ skipping 21 matching lines @@
   // This is probably off, but may be on, if --force_renderer_accessibility is
   // passed, or EditableTextOnly if this is Win7.
   virtual void ResetAccessibilityMode() = 0;
 
   // Called when screen reader client is detected.
   virtual void OnScreenReaderDetected() = 0;
 
   // Returns true if the browser should be customized for accessibility.
   virtual bool IsAccessibleBrowser() = 0;
 
+  // Gets the policy for handling animated images.
+  // It has three options, "Allowed", "Once" and "None".
+  virtual const std::string& GetImageAnimationPolicy() const = 0;
+
+  // Sets the policy for handling animated images.
+  virtual void SetImageAnimationPolicy(const std::string& policy) = 0;
+
   // Add a callback method that will be called once, a small while after the
   // browser starts up, when accessibility state histograms are updated.
   // Use this to register a method to update additional accessibility
   // histograms.
   virtual void AddHistogramCallback(base::Closure callback) = 0;
 
   virtual void UpdateHistogramsForTesting() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_ACCESSIBILITY_STATE_H_