Measure loading time of several tabs.

chrome/browser/automation/automation_provider.h

Index: chrome/browser/automation/automation_provider.h
diff --git a/chrome/browser/automation/automation_provider.h b/chrome/browser/automation/automation_provider.h
index bd37a4b9323497977fd56f09d8965755a1c41e3f..b644dd4038b18b6df863eea3c4b36740ebb5c1a2 100644
--- a/chrome/browser/automation/automation_provider.h
+++ b/chrome/browser/automation/automation_provider.h
@@ -50,6 +50,7 @@ class ExtensionTestResultNotificationObserver;
 class ExternalTabContainer;
 class LoginHandler;
 class MetricEventDurationObserver;
+class InitialLoadObserver;
 class NavigationControllerRestoredObserver;
 struct AutocompleteMatchData;
 
@@ -376,6 +377,15 @@ class AutomationProvider : public base::RefCounted<AutomationProvider>,
                 DictionaryValue* args,
                 IPC::Message* reply_message);
 
+  // Return load times of initial tabs.
+  // Uses the JSON interface for input/output.
+  // Only includes tabs from command line arguments or session restore.
+  // See declaration of InitialLoadObserver in automation_provider_observers.h
+  // for example response.
+  void GetInitialLoadTimes(Browser* browser,
+                           DictionaryValue* args,
+                           IPC::Message* reply_message);
+
   // Get info about plugins.
   // Uses the JSON interface for input/output.
   void GetPluginsInfo(Browser* browser,
@@ -770,7 +780,7 @@ class AutomationProvider : public base::RefCounted<AutomationProvider>,
   typedef std::map<int, ExtensionPortContainer*> PortContainerMap;
 
   scoped_ptr<IPC::ChannelProxy> channel_;
-  scoped_ptr<NotificationObserver> initial_load_observer_;
+  scoped_ptr<InitialLoadObserver> initial_load_observer_;
   scoped_ptr<NotificationObserver> new_tab_ui_load_observer_;
   scoped_ptr<NotificationObserver> find_in_page_observer_;
   scoped_ptr<NotificationObserver> dom_operation_observer_;