Add LOCAL_ prefix to non-UMA histogram macros.

base/metrics/sparse_histogram_unittest.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 <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/sample_map.h"
@@ skipping 46 matching lines @@
 
   histogram->Add(100);
   histogram->Add(101);
   scoped_ptr<HistogramSamples> snapshot2(histogram->SnapshotSamples());
   EXPECT_EQ(3, snapshot2->TotalCount());
   EXPECT_EQ(2, snapshot2->GetCount(100));
   EXPECT_EQ(1, snapshot2->GetCount(101));
 }
 
 TEST_F(SparseHistogramTest, MacroBasicTest) {
-  HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
-  HISTOGRAM_SPARSE_SLOWLY("Sparse", 200);
-  HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
+  LOCAL_HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
+  LOCAL_HISTOGRAM_SPARSE_SLOWLY("Sparse", 200);
+  LOCAL_HISTOGRAM_SPARSE_SLOWLY("Sparse", 100);
 
   StatisticsRecorder::Histograms histograms;
   StatisticsRecorder::GetHistograms(&histograms);
 
   ASSERT_EQ(1U, histograms.size());
   HistogramBase* sparse_histogram = histograms[0];
 
   EXPECT_EQ(SPARSE_HISTOGRAM, sparse_histogram->GetHistogramType());
   EXPECT_EQ("Sparse", sparse_histogram->histogram_name());
   EXPECT_EQ(HistogramBase::kNoFlags, sparse_histogram->flags());
@@ skipping 55 matching lines @@
 
   int flag;
   EXPECT_TRUE(iter.ReadInt(&flag));
   EXPECT_EQ(HistogramBase::kIPCSerializationSourceFlag, flag);
 
   // No more data in the pickle.
   EXPECT_FALSE(iter.SkipBytes(1));
 }
 
 }  // namespace base