Add SampleMap and use it in SparseHistogram


BUG=139612


Review URL: https://chromiumcodereview.appspot.com/11022002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@160485 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/metrics/sample_vector_unittest.cc b/base/metrics/sample_vector_unittest.cc
index 13e5e8b..dbbbd15 100644
--- a/base/metrics/sample_vector_unittest.cc
+++ b/base/metrics/sample_vector_unittest.cc
@@ -168,8 +168,8 @@
   EXPECT_DEATH(samples1.Subtract(samples2), "");
 }
 
-// (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
 #endif
+// (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
 
 TEST(SampleVectorIteratorTest, IterateTest) {
   BucketRanges ranges(5);
@@ -258,8 +258,8 @@
   EXPECT_FALSE(it->Done());
 }
 
-// (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
 #endif
+// (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
 
 }  // namespace
 }  // namespace base