Cleanup of component/metrics for GN.

components/metrics/serialization/metric_sample.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/metrics/serialization/metric_sample.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 56 matching lines @@
   } else {
     // The type can only be USER_ACTION.
     CHECK_EQ(type_, USER_ACTION);
     return base::StringPrintf("useraction%c%s%c",
                               '\0',
                               name().c_str(),
                               '\0');
   }
 }
 
-const int MetricSample::sample() const {
+int MetricSample::sample() const {
   CHECK_NE(type_, USER_ACTION);
   CHECK_NE(type_, CRASH);
   return sample_;
 }
 
-const int MetricSample::min() const {
+int MetricSample::min() const {
   CHECK_EQ(type_, HISTOGRAM);
   return min_;
 }
 
-const int MetricSample::max() const {
+int MetricSample::max() const {
   CHECK_NE(type_, CRASH);
   CHECK_NE(type_, USER_ACTION);
   CHECK_NE(type_, SPARSE_HISTOGRAM);
   return max_;
 }
 
-const int MetricSample::bucket_count() const {
+int MetricSample::bucket_count() const {
   CHECK_EQ(type_, HISTOGRAM);
   return bucket_count_;
 }
 
 // static
 scoped_ptr<MetricSample> MetricSample::CrashSample(
     const std::string& crash_name) {
   return scoped_ptr<MetricSample>(
       new MetricSample(CRASH, crash_name, 0, 0, 0, 0));
 }
@@ skipping 82 matching lines @@
       new MetricSample(USER_ACTION, action_name, 0, 0, 0, 0));
 }
 
 bool MetricSample::IsEqual(const MetricSample& metric) {
   return type_ == metric.type_ && name_ == metric.name_ &&
          sample_ == metric.sample_ && min_ == metric.min_ &&
          max_ == metric.max_ && bucket_count_ == metric.bucket_count_;
 }
 
 }  // namespace metrics