Localize counter class member functions.

test/unittests/counters-unittest.cc

 // Copyright 2014 the V8 project 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 <vector>
 
 #include "src/counters-inl.h"
 #include "src/counters.h"
 #include "src/handles-inl.h"
 #include "src/objects-inl.h"
@@ skipping 10 matching lines @@
   void AddSample(int value) { samples_.push_back(value); }
   std::vector<int>* samples() { return &samples_; }
 
  private:
   std::vector<int> samples_;
 };
 
 
 class AggregatedMemoryHistogramTest : public ::testing::Test {
  public:
-  AggregatedMemoryHistogramTest() {
-    aggregated_ = AggregatedMemoryHistogram<MockHistogram>(&mock_);
-  }
+  AggregatedMemoryHistogramTest() : aggregated_(&mock_) {}
   virtual ~AggregatedMemoryHistogramTest() {}
 
   void AddSample(double current_ms, double current_value) {
     aggregated_.AddSample(current_ms, current_value);
   }
 
   std::vector<int>* samples() { return mock_.samples(); }
 
  private:
   AggregatedMemoryHistogram<MockHistogram> aggregated_;
@@ skipping 457 matching lines @@
   EXPECT_EQ(1, counter()->count());
   EXPECT_EQ(2, counter2()->count());
   EXPECT_EQ(2, counter3()->count());
   EXPECT_IN_RANGE(250, counter()->time().InMilliseconds(), 250 + kEpsilonMs);
   EXPECT_IN_RANGE(300, counter2()->time().InMilliseconds(), 300 + kEpsilonMs);
   EXPECT_IN_RANGE(100, counter3()->time().InMilliseconds(), 100 + kEpsilonMs);
 }
 
 }  // namespace internal
 }  // namespace v8