Migrate chrome/browser files to histogram_macros.h includes.

chrome/browser/android/hung_renderer_infobar_delegate.cc

 // Copyright 2015 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 "chrome/browser/android/hung_renderer_infobar_delegate.h"
 
 #include "base/callback.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "chrome/browser/android/android_theme_resources.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/infobars/core/infobar.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/result_codes.h"
 #include "ui/base/l10n/l10n_util.h"
 
 // static
 void HungRendererInfoBarDelegate::Create(
@@ skipping 58 matching lines @@
   LogEvent(WAIT_CLICKED);
   return true;
 }
 
 void HungRendererInfoBarDelegate::LogEvent(Event event) {
   DCHECK(!terminal_event_logged_for_uma_);
   terminal_event_logged_for_uma_ = true;
   UMA_HISTOGRAM_ENUMERATION("Renderer.Hung.MobileInfoBar.UserEvent", event,
                             EVENT_COUNT);
 }