[cros] RLZ tracking can be turned off via a flag file.

chrome/browser/rlz/rlz.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_RLZ_RLZ_H_
 #define CHROME_BROWSER_RLZ_RLZ_H_
 
 #include "build/build_config.h"
 
 #if defined(ENABLE_RLZ)
@@ skipping 57 matching lines @@
   // Returns false if the rlz string could not be obtained. In some cases
   // an empty string can be returned which is not an error.
   static bool GetAccessPointRlz(rlz_lib::AccessPoint point, string16* rlz);
 
   // Invoked during shutdown to clean up any state created by RLZTracker.
   static void CleanupRlz();
 
   // This method is public for use by the Singleton class.
   static RLZTracker* GetInstance();
 
+  // Enables zero delay for InitRlzFromProfileDelayed. For testing only.
+  static void EnableZeroDelayForTesting();
+
   // The following methods are made protected so that they can be used for
   // testing purposes. Production code should never need to call these.
  protected:
   RLZTracker();
   virtual ~RLZTracker();
 
   // Called by InitRlzFromProfileDelayed with values taken from |profile|.
   static bool InitRlzDelayed(bool first_run,
                              int delay,
                              bool is_google_default_search,
@@ skipping 103 matching lines @@
   // Keeps track of whether the omnibox or host page have been used.
   bool omnibox_used_;
   bool homepage_used_;
 
   // Main and (optionally) reactivation brand codes, assigned on UI thread.
   std::string brand_;
   std::string reactivation_brand_;
 
   content::NotificationRegistrar registrar_;
 
+  // Minimum delay before sending financial ping after initialization.

[Peter Kasting, 2012/12/17 20:14:03]

Nit: Another instance of "financial ping"

[Ivan Korotkov, 2012/12/20 09:20:42]

Well, here it's OK since these are RLZTracker guts and there are already
functions like SendFinancialPing

+  int min_delay_;
+
   DISALLOW_COPY_AND_ASSIGN(RLZTracker);
 };
 
 #endif  // defined(ENABLE_RLZ)
 
 #endif  // CHROME_BROWSER_RLZ_RLZ_H_