Make code generated for histogram macros more compact.

base/metrics/histogram_base.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 "base/metrics/histogram_base.h"
 
 #include <climits>
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/pickle.h"
 #include "base/process/process_handle.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 
 namespace base {
 
 std::string HistogramTypeToString(HistogramType type) {
-  switch(type) {
+  switch (type) {
     case HISTOGRAM:
       return "HISTOGRAM";
     case LINEAR_HISTOGRAM:
       return "LINEAR_HISTOGRAM";
     case BOOLEAN_HISTOGRAM:
       return "BOOLEAN_HISTOGRAM";
     case CUSTOM_HISTOGRAM:
       return "CUSTOM_HISTOGRAM";
     case SPARSE_HISTOGRAM:
       return "SPARSE_HISTOGRAM";
@@ skipping 25 matching lines @@
 }
 
 const HistogramBase::Sample HistogramBase::kSampleType_MAX = INT_MAX;
 
 HistogramBase::HistogramBase(const std::string& name)
     : histogram_name_(name),
       flags_(kNoFlags) {}
 
 HistogramBase::~HistogramBase() {}
 
+void HistogramBase::CheckName(const StringPiece& name) const {
+  DCHECK_EQ(histogram_name(), name);
+}
+
 void HistogramBase::SetFlags(int32 flags) {
   flags_ |= flags;
 }
 
 void HistogramBase::ClearFlags(int32 flags) {
   flags_ &= ~flags;
 }
 
 void HistogramBase::AddTime(const TimeDelta& time) {
   Add(static_cast<Sample>(time.InMilliseconds()));
@@ skipping 59 matching lines @@
   return result;
 }
 
 void HistogramBase::WriteAsciiBucketValue(Count current,
                                           double scaled_sum,
                                           std::string* output) const {
   StringAppendF(output, " (%d = %3.1f%%)", current, current/scaled_sum);
 }
 
 }  // namespace base