Add new extension APIs related to animation policy.

chrome/browser/accessibility/animation_policy_prefs.h

Index: chrome/browser/accessibility/animation_policy_prefs.h
diff --git a/chrome/browser/accessibility/animation_policy_prefs.h b/chrome/browser/accessibility/animation_policy_prefs.h
new file mode 100644
index 0000000000000000000000000000000000000000..b7ef181ad2727bc517f9ea25642a6b6812a76233
--- /dev/null
+++ b/chrome/browser/accessibility/animation_policy_prefs.h
@@ -0,0 +1,18 @@
+// Copyright 2015 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 CHROME_BROWSER_ACCESSIBILITY_ANIMATION_POLICY_PREFS_H_
+#define CHROME_BROWSER_ACCESSIBILITY_ANIMATION_POLICY_PREFS_H_
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+extern const char kAnimationPolicyAllowed[];
+extern const char kAnimationPolicyOnce[];
+extern const char kAnimationPolicyNone[];
+
+void RegisterAnimationPolicyPrefs(user_prefs::PrefRegistrySyncable* registry);
+
+#endif  // CHROME_BROWSER_ACCESSIBILITY_ANIMATION_POLICY_PREFS_H_