Add LOCAL_ prefix to non-UMA histogram macros.

base/metrics/sparse_histogram.h

 // 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.
 
 #ifndef BASE_METRICS_SPARSE_HISTOGRAM_H_
 #define BASE_METRICS_SPARSE_HISTOGRAM_H_
 
 #include <map>
 #include <string>
 
@@ skipping 10 matching lines @@
 
 // The common code for different SparseHistogram macros.
 #define HISTOGRAM_SPARSE_COMMON(name, sample, flag) \
     do { \
       base::HistogramBase* histogram( \
           base::SparseHistogram::FactoryGet(name, flag)); \
       DCHECK_EQ(histogram->histogram_name(), name); \
       histogram->Add(sample); \
     } while (0)
 
-#define HISTOGRAM_SPARSE_SLOWLY(name, sample) \
+#define LOCAL_HISTOGRAM_SPARSE_SLOWLY(name, sample) \
     HISTOGRAM_SPARSE_COMMON(name, sample, base::HistogramBase::kNoFlags)
 
 #define UMA_HISTOGRAM_SPARSE_SLOWLY(name, sample) \
     HISTOGRAM_SPARSE_COMMON(name, sample, \
                             base::HistogramBase::kUmaTargetedHistogramFlag)
 
-//------------------------------------------------------------------------------
-// Define debug only version of macros.
-#ifndef NDEBUG
-
-#define DHISTOGRAM_SPARSE_SLOWLY(name, sample) \
-    HISTOGRAM_SPARSE_SLOWLY(name, sample)
-
-#else  // NDEBUG
-
-#define DHISTOGRAM_SPARSE_SLOWLY(name, sample) \
-    while (0) { \
-      static_cast<void>(name); \
-      static_cast<void>(sample); \
-    }
-
-#endif  // NDEBUG
-
 class HistogramSamples;
 
 class BASE_EXPORT_PRIVATE SparseHistogram : public HistogramBase {
  public:
   // If there's one with same name, return the existing one. If not, create a
   // new one.
   static HistogramBase* FactoryGet(const std::string& name, int32 flags);
 
   virtual ~SparseHistogram();
 
@@ skipping 43 matching lines @@
   mutable base::Lock lock_;
 
   SampleMap samples_;
 
   DISALLOW_COPY_AND_ASSIGN(SparseHistogram);
 };
 
 }  // namespace base
 
 #endif  // BASE_METRICS_SPARSE_HISTOGRAM_H_