Introducing phased profiling framework

chrome/browser/chrome_browser_main.cc

 // 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.
 
 #include "chrome/browser/chrome_browser_main.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 966 matching lines @@
   }
 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 
 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
   // Set the product channel for crash reports.
   base::debug::SetCrashKeyValue(crash_keys::kChannel,
       chrome::VersionInfo::GetVersionStringModifier());
 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 
   // Initialize tracking synchronizer system.
-  tracking_synchronizer_ = new metrics::TrackingSynchronizer();
+  tracking_synchronizer_ =
+      new metrics::TrackingSynchronizer(base::TimeTicks::Now());
 
 #if defined(OS_MACOSX)
   // Get the Keychain API to register for distributed notifications on the main
   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
   // which doesn't. This ensures those notifications will get delivered
   // properly. See issue 37766.
   // (Note that the callback mask here is empty. I don't want to register for
   // any callbacks, I just want to initialize the mechanism.)
   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 #endif  // defined(OS_MACOSX)
@@ skipping 730 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(OS_ANDROID)
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }