clang-format all of //ash

ash/shelf/shelf_button_pressed_metric_tracker.cc

Index: ash/shelf/shelf_button_pressed_metric_tracker.cc
diff --git a/ash/shelf/shelf_button_pressed_metric_tracker.cc b/ash/shelf/shelf_button_pressed_metric_tracker.cc
index 096972d6ec74c3494615a68ba257d4dc5cd0f58a..19df2f02d47d624bb8d5a425b2abf43bbb76acac 100644
--- a/ash/shelf/shelf_button_pressed_metric_tracker.cc
+++ b/ash/shelf/shelf_button_pressed_metric_tracker.cc
@@ -18,11 +18,9 @@ const char ShelfButtonPressedMetricTracker::
 ShelfButtonPressedMetricTracker::ShelfButtonPressedMetricTracker()
     : tick_clock_(new base::DefaultTickClock()),
       time_of_last_minimize_(base::TimeTicks()),
-      last_minimized_source_button_(nullptr) {
-}
+      last_minimized_source_button_(nullptr) {}
 
-ShelfButtonPressedMetricTracker::~ShelfButtonPressedMetricTracker() {
-}
+ShelfButtonPressedMetricTracker::~ShelfButtonPressedMetricTracker() {}
 
 void ShelfButtonPressedMetricTracker::ButtonPressed(
     const ui::Event& event,