Change includes of histogram.h to histogram_macros.h.

ui/events/event_utils.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/event_utils.h"
 
 #include <vector>
 
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 
 namespace ui {
 
 namespace {
 int g_custom_event_types = ET_LAST;
 }  // namespace
 
 std::unique_ptr<Event> EventFromNative(const base::NativeEvent& native_event) {
@@ skipping 105 matching lines @@
     case ET_TOUCH_RELEASED:
       UMA_HISTOGRAM_CUSTOM_COUNTS("Event.Latency.OS.TOUCH_RELEASED",
                                   delta.InMicroseconds(), 1, 1000000, 50);
       return;
     default:
       return;
   }
 }
 
 }  // namespace ui