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

chrome/browser/rlz/rlz.h

Index: chrome/browser/rlz/rlz.h
diff --git a/chrome/browser/rlz/rlz.h b/chrome/browser/rlz/rlz.h
index aa02d497246749953ba1a885f0450534bf19f833..3c1733e6d82feaa3cae48aea373a8efa5d752d9c 100644
--- a/chrome/browser/rlz/rlz.h
+++ b/chrome/browser/rlz/rlz.h
@@ -75,6 +75,9 @@ class RLZTracker : public content::NotificationObserver {
   // 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:
@@ -198,6 +201,9 @@ class RLZTracker : public content::NotificationObserver {
 
   content::NotificationRegistrar registrar_;
 
+  // Minimum delay before sending financial ping after initialization.
+  int min_delay_;
+
   DISALLOW_COPY_AND_ASSIGN(RLZTracker);
 };