In the declarative API, check that the extension has permission for the event

chrome/browser/extensions/api/declarative/declarative_api.h

Index: chrome/browser/extensions/api/declarative/declarative_api.h
diff --git a/chrome/browser/extensions/api/declarative/declarative_api.h b/chrome/browser/extensions/api/declarative/declarative_api.h
index e8fb7392909fab9ffad7d6b698cc23f7e24642f1..00948a64b47b9865dc7e7139e1a07d3ee7e71d5a 100644
--- a/chrome/browser/extensions/api/declarative/declarative_api.h
+++ b/chrome/browser/extensions/api/declarative/declarative_api.h
@@ -20,6 +20,7 @@ class RulesFunction : public AsyncExtensionFunction {
   virtual ~RulesFunction();
 
   // ExtensionFunction:
+  virtual bool HasPermission() OVERRIDE;
   virtual bool RunImpl() OVERRIDE;
 
   // Concrete implementation of the RulesFunction that is being called
@@ -28,6 +29,13 @@ class RulesFunction : public AsyncExtensionFunction {
   virtual bool RunImplOnCorrectThread() = 0;
 
   scoped_refptr<RulesRegistry> rules_registry_;
+
+ private:
+  // Initializes |event_name_| from |args_| if it hasn't been already,
+  // and returns true if it was successful.
+  bool Init();
+
+  std::string event_name_;
 };
 
 class AddRulesFunction : public RulesFunction {