Switch to standard integer types in components/, part 2 of 4.

components/metrics/histogram_encoder.h

 // 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.
 
 // This file defines an utility function that records any changes in a given
 // histogram for transmission.
 
 #ifndef COMPONENTS_METRICS_HISTOGRAM_ENCODER_H_
 #define COMPONENTS_METRICS_HISTOGRAM_ENCODER_H_
 
 #include <string>
 
-#include "base/basictypes.h"
 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
 
 namespace base {
 class HistogramSamples;
 }
 
 namespace metrics {
 
 // Record any changes (histogram deltas of counts from |snapshot|) into
 // |uma_proto| for the given histogram (|histogram_name|).
 void EncodeHistogramDelta(const std::string& histogram_name,
                           const base::HistogramSamples& snapshot,
                           ChromeUserMetricsExtension* uma_proto);
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_HISTOGRAM_ENCODER_H_