ash: Add UMA action metrics for Ctrl-Shift-Q

ash/shell_delegate.h

Index: ash/shell_delegate.h
diff --git a/ash/shell_delegate.h b/ash/shell_delegate.h
index 2b9992e6a732d50b4e84eb4f5cdc9c763833a7e1..cf936e2f3310dda4457c8f2da6e789feb812fddd 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -62,6 +62,8 @@ enum UserMetricsAction {
   UMA_ACCEL_NEXTWINDOW_TAB,
   UMA_ACCEL_PREVWINDOW_F5,
   UMA_ACCEL_PREVWINDOW_TAB,
+  UMA_ACCEL_EXIT_FIRST_Q,
+  UMA_ACCEL_EXIT_SECOND_Q,
   UMA_ACCEL_SEARCH_LWIN,
   UMA_ACCEL_SHUT_DOWN_POWER_BUTTON,
   UMA_CLOSE_THROUGH_CONTEXT_MENU,
@@ -230,7 +232,7 @@ class ASH_EXPORT ShellDelegate {
   virtual void HandleMediaPrevTrack() = 0;
 
   // Produces l10n-ed text of remaining time, e.g.: "13 minutes left" or
-  // "13 Minuten übrig".
+  // "13 Minuten links".
   // Used, for example, to display the remaining battery life.
   virtual base::string16 GetTimeRemainingString(base::TimeDelta delta) = 0;