Add PyAuto tests for triggering browser/page action.

chrome/browser/automation/testing_automation_provider.h

Index: chrome/browser/automation/testing_automation_provider.h
diff --git a/chrome/browser/automation/testing_automation_provider.h b/chrome/browser/automation/testing_automation_provider.h
index 18be8a8c2a234839fca2588e558cdc65dcd657dc..c4157f90ca7cfb4840f36495d793824f16d7aaaa 100644
--- a/chrome/browser/automation/testing_automation_provider.h
+++ b/chrome/browser/automation/testing_automation_provider.h
@@ -658,6 +658,16 @@ class TestingAutomationProvider : public AutomationProvider,
                              base::DictionaryValue* args,
                              IPC::Message* reply_message);
 
+  // Trigger page action asynchronously in the active tab.
+  // Uses the JSON interface for input/output.
+  void TriggerPageActionById(base::DictionaryValue* args,
+                             IPC::Message* reply_message);
+
+  // Trigger browser action asynchronously in the active tab.
+  // Uses the JSON interface for input/output.
+  void TriggerBrowserActionById(base::DictionaryValue* args,
+                                IPC::Message* reply_message);
+
   // Responds to the Find request and returns the match count.
   void FindInPage(Browser* browser,
                   base::DictionaryValue* args,