Initial CL for Data Saver (Flywheel) prompt when cellular network detected

chrome/browser/chromeos/status/data_promo_notification.h

Index: chrome/browser/chromeos/status/data_promo_notification.h
diff --git a/chrome/browser/chromeos/status/data_promo_notification.h b/chrome/browser/chromeos/status/data_promo_notification.h
index def5e8e6135d968df0063d2ecb1094e80f6ca2d6..32f786bd6c1073791ca4f694b599dd4f870e6328 100644
--- a/chrome/browser/chromeos/status/data_promo_notification.h
+++ b/chrome/browser/chromeos/status/data_promo_notification.h
@@ -35,7 +35,10 @@ class DataPromoNotification : public NetworkStateHandlerObserver {
   void DefaultNetworkChanged(const NetworkState* network) override;
 
   // Shows 3G promo notification if needed.
-  void ShowOptionalMobileDataPromoNotification();
+  void ShowOptionalMobileDataPromoNotification(bool hotkey_debug);

[Daniel Erat, 2015/03/23 03:49:21]

please update the comments to document what the "hotkey_debug" argument is for
(or rename the argument to be more descriptive)

[Greg Levin, 2015/03/24 20:35:32]

Done.

+
+  // Show notification prompting user to install Data Saver extension.
+  bool ShowDataSaverNotification(bool hotkey_debug);
 
   // True if check for promo needs to be done, otherwise ignore it for the
   // current session.