Add private extension API to move the accessibility focus ring.

chrome/browser/accessibility/accessibility_extension_api.h

Index: chrome/browser/accessibility/accessibility_extension_api.h
diff --git a/chrome/browser/accessibility/accessibility_extension_api.h b/chrome/browser/accessibility/accessibility_extension_api.h
index 0c10d26b04995513f3a906f970cd04e0b1114d8a..e16426e13d94d381837e477dc63fdc05c232e7e2 100644
--- a/chrome/browser/accessibility/accessibility_extension_api.h
+++ b/chrome/browser/accessibility/accessibility_extension_api.h
@@ -135,4 +135,13 @@ class AccessibilityPrivateGetAlertsForTabFunction
                              ACCESSIBILITY_PRIVATE_GETALERTSFORTAB)
 };
 
+// API function that sets the location of the accessibility focus ring.
+class AccessibilityPrivateSetFocusRingFunction
+    : public ChromeSyncExtensionFunction {
+  virtual ~AccessibilityPrivateSetFocusRingFunction() {}
+  virtual bool RunSync() OVERRIDE;
+  DECLARE_EXTENSION_FUNCTION("accessibilityPrivate.setFocusRing",
+                             ACCESSIBILITY_PRIVATE_SETFOCUSRING)
+};
+
 #endif  // CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_