Merge "Close system dialogs as Escape fallback" into udc-dev

services/core/java/com/android/server/policy/PhoneWindowManager.java

@@ -3484,6 +3484,11 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     interceptScreenshotChord(SCREENSHOT_KEY_OTHER, 0 /*pressDelay*/);
                 }
                 return true;
+            case KeyEvent.KEYCODE_ESCAPE:
+                if (down && repeatCount == 0) {
+                    mContext.closeSystemDialogs();
+                }
+                return true;
         }
 
         return false;