Merge pull request #10015 from etiennesegonzac/bug-865754-call-waitin…

…g-screen-off

Bug 865754 - When a second incoming phone call occurs, do not automatically turn on the screen

apps/system/js/screen_manager.js

@@ -252,14 +252,11 @@ var ScreenManager = {
         }
 
         // If the _cpuWakeLock is already set we are in a multiple
-        // call setup, turning the screen on to let user see the
-        // notification.
+        // call setup, the user will be notified by a tone.
         if (this._cpuWakeLock) {
-          this.turnScreenOn();
           // In case of user making an extra call, the attention screen
           // may be hidden at top so we need to confirm it's shown again.
           AttentionScreen.show();
-
           break;
         }