Add Startup Timing to CPM

chrome/browser/sessions/session_service.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SESSIONS_SESSION_SERVICE_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_SERVICE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 12 matching lines @@
 class Profile;
 class SessionCommand;
 class TabContents;
 struct SessionTab;
 struct SessionWindow;
 
 namespace content {
 class NavigationEntry;
 }
 
+namespace performance_monitor {
+class PerformanceMonitorSessionRestoreBrowserTest;
+}
+
 // SessionService ------------------------------------------------------------
 
 // SessionService is responsible for maintaining the state of open windows
 // and tabs so that they can be restored at a later date. The state of the
 // currently open browsers is referred to as the current session.
 //
 // SessionService supports restoring from the last session. The last session
 // typically corresponds to the last run of the browser, but not always. For
 // example, if the user has a tabbed browser and app window running, closes the
 // tabbed browser, then creates a new tabbed browser the current session is made
 // the last session and the current session reset. This is done to provide the
 // illusion that app windows run in separate processes. Similar behavior occurs
 // with incognito windows.
 //
 // SessionService itself maintains a set of SessionCommands that allow
 // SessionService to rebuild the open state of the browser (as
 // SessionWindow, SessionTab and TabNavigation). The commands are periodically
 // flushed to SessionBackend and written to a file. Every so often
 // SessionService rebuilds the contents of the file from the open state
 // of the browser.
 class SessionService : public BaseSessionService,
                        public content::NotificationObserver {
   friend class SessionRestoreTest;
   friend class SessionServiceTestHelper;
+  friend class performance_monitor::PerformanceMonitorSessionRestoreBrowserTest;

[sky, 2012/08/07 19:48:04]

I don't want another friend class. Can you move what is needed into
SessionServiceTestHelper or another standalone class that is only built for
tests and is a friend and exposes whatever you need.

[Devlin, 2012/08/07 22:51:22]

Done. Since SessionRestoreTest needed the same thing, also removed that friend
class.

  public:
   // Used to distinguish an application window from a normal one.
   enum AppType {
     TYPE_APP,
     TYPE_NORMAL
   };
 
   // Creates a SessionService for the specified profile.
   explicit SessionService(Profile* profile);
   // For testing.
@@ skipping 406 matching lines @@
   const base::TimeDelta save_delay_in_hrs_;
 
   // For browser_tests, since we want to simulate the browser shutting down
   // without quitting.
   bool force_browser_not_alive_with_no_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionService);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_SERVICE_H_