Implement scriptBadge.requestToAct.

chrome/browser/extensions/api/extension_action/extension_actions_api.h

Index: chrome/browser/extensions/api/extension_action/extension_actions_api.h
diff --git a/chrome/browser/extensions/api/extension_action/extension_actions_api.h b/chrome/browser/extensions/api/extension_action/extension_actions_api.h
index 5ab8043412919f25377ee8bbb310e428678250ac..ac43e187367c02c3f0442c9c6edc7f86aa234253 100644
--- a/chrome/browser/extensions/api/extension_action/extension_actions_api.h
+++ b/chrome/browser/extensions/api/extension_action/extension_actions_api.h
@@ -11,6 +11,9 @@
 namespace base {
 class DictionaryValue;
 }
+namespace extensions {
+class TabHelper;
+}
 class TabContents;
 
 // Implementation of the browserAction, pageAction, and scriptBadge APIs.
@@ -34,6 +37,10 @@ class ExtensionActionFunction : public SyncExtensionFunction {
   void NotifyLocationBarChange();
   bool SetVisible(bool visible);
 
+  // Extension-related information for |tab_id_|.
+  // CHECK-fails if there is no tab.
+  extensions::TabHelper& tab_helper() const;
+
   // All the extension action APIs take a single argument called details that
   // is a dictionary.
   base::DictionaryValue* details_;