Re-write many calls to WrapUnique() with MakeUnique()

base/metrics/histogram.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.
 
 // Histogram is an object that aggregates statistics, and can summarize them in
 // various forms, including ASCII graphical, HTML, and numerically (as a
 // vector of numbers corresponding to each of the aggregating buckets).
 // See header file for details and examples.
 
 #include "base/metrics/histogram.h"
@@ skipping 734 matching lines @@
 
  protected:
   BucketRanges* CreateRanges() override {
     BucketRanges* ranges = new BucketRanges(bucket_count_ + 1);
     LinearHistogram::InitializeBucketRanges(minimum_, maximum_, ranges);
     return ranges;
   }
 
   std::unique_ptr<HistogramBase> HeapAlloc(
       const BucketRanges* ranges) override {
-    return WrapUnique(
-        new LinearHistogram(name_, minimum_, maximum_, ranges));
+    return WrapUnique(new LinearHistogram(name_, minimum_, maximum_, ranges));
   }
 
   void FillHistogram(HistogramBase* base_histogram) override {
     Histogram::Factory::FillHistogram(base_histogram);
     LinearHistogram* histogram = static_cast<LinearHistogram*>(base_histogram);
     // Set range descriptions.
     if (descriptions_) {
       for (int i = 0; descriptions_[i].description; ++i) {
         histogram->bucket_description_[descriptions_[i].sample] =
             descriptions_[i].description;
@@ skipping 413 matching lines @@
     Sample sample = custom_ranges[i];
     if (sample < 0 || sample > HistogramBase::kSampleType_MAX - 1)
       return false;
     if (sample != 0)
       has_valid_range = true;
   }
   return has_valid_range;
 }
 
 }  // namespace base