Change histogram.h includes to histogram_macros.h in components/

components/google/core/browser/google_search_metrics.cc

 // Copyright 2014 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 "components/google/core/browser/google_search_metrics.h"
 
 #include "base/logging.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 
 GoogleSearchMetrics::GoogleSearchMetrics() {
 }
 
 GoogleSearchMetrics::~GoogleSearchMetrics() {
 }
 
 void GoogleSearchMetrics::RecordGoogleSearch(AccessPoint ap) const {
   DCHECK_NE(AP_BOUNDARY, ap);
   UMA_HISTOGRAM_ENUMERATION("GoogleSearch.AccessPoint", ap, AP_BOUNDARY);
 }
 
 #if defined(OS_ANDROID)
 void GoogleSearchMetrics::RecordAndroidGoogleSearch(
     AccessPoint ap,
     bool prerender_enabled) const {
   DCHECK_NE(AP_BOUNDARY, ap);
   if (prerender_enabled) {
     UMA_HISTOGRAM_ENUMERATION("GoogleSearch.AccessPoint_PrerenderEnabled",
                               ap, AP_BOUNDARY);
   } else {
     UMA_HISTOGRAM_ENUMERATION("GoogleSearch.AccessPoint_PrerenderDisabled",
                               ap, AP_BOUNDARY);
   }
 }
 #endif