Migrate chrome/browser files to histogram_macros.h includes.

chrome/browser/predictors/predictor_database.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 "chrome/browser/predictors/predictor_database.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/predictors/autocomplete_action_predictor_table.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor_tables.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
 #include "sql/connection.h"
 
 using content::BrowserThread;
@@ skipping 128 matching lines @@
 scoped_refptr<ResourcePrefetchPredictorTables>
     PredictorDatabase::resource_prefetch_tables() {
   return db_->resource_prefetch_tables_;
 }
 
 sql::Connection* PredictorDatabase::GetDatabase() {
   return db_->db_.get();
 }
 
 }  // namespace predictors