Add new extension APIs related to animation policy.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 83b62c9740b6ff4b62972d7c5675376ab7a252b2..dc10e10aa2c47238560178fd38d14a65356a3f47 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -222,6 +222,7 @@
 #endif
 
 #if defined(ENABLE_EXTENSIONS)
+#include "chrome/browser/accessibility/animation_policy_prefs.h"
 #include "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/media/cast_transport_host_filter.h"
@@ -2219,6 +2220,18 @@ void ChromeContentBrowserClient::OverrideWebkitPrefs(
   web_prefs->hyperlink_auditing_enabled =
       prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
 
+#if defined(ENABLE_EXTENSIONS)
+  std::string image_animation_policy =
+      prefs->GetString(prefs::kAnimationPolicy);
+  if (image_animation_policy == kAnimationPolicyOnce)
+    web_prefs->animation_policy =
+        content::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE;
+  else if (image_animation_policy == kAnimationPolicyNone)
+    web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_NO_ANIMATION;
+  else
+    web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_ALLOWED;
+#endif
+
   // Make sure we will set the default_encoding with canonical encoding name.
   web_prefs->default_encoding =
       CharacterEncoding::GetCanonicalEncodingNameByAliasName(