Use lock-free lazy initialization for static histogram references

Make all histogram macros thread safe, and fast by again
using statics to achieve performance.

...at the cost of:
Leak all histograms to avoid races at shutdown.

Also included leak suppression for valgrind.

r=rtenneti
BUG=78207
Review URL: http://codereview.chromium.org/6780035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@80412 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 4 deletions

diff --git a/net/socket_stream/socket_stream_metrics_unittest.cc b/net/socket_stream/socket_stream_metrics_unittest.cc
index 72ae142..23f227d 100644
--- a/net/socket_stream/socket_stream_metrics_unittest.cc
+++ b/net/socket_stream/socket_stream_metrics_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -25,7 +25,7 @@ TEST(SocketStreamMetricsTest, Initialize) {
 }
 
 TEST(SocketStreamMetricsTest, ProtocolType) {
-  scoped_refptr<Histogram> histogram;
+  Histogram* histogram;
 
   // First we'll preserve the original values. We need to do this
   // as histograms can get affected by other tests. In particular,
@@ -57,7 +57,7 @@ TEST(SocketStreamMetricsTest, ProtocolType) {
 }
 
 TEST(SocketStreamMetricsTest, ConnectionType) {
-  scoped_refptr<Histogram> histogram;
+  Histogram* histogram;
 
   // First we'll preserve the original values.
   Histogram::SampleSet original;
@@ -91,7 +91,7 @@ TEST(SocketStreamMetricsTest, ConnectionType) {
 }
 
 TEST(SocketStreamMetricsTest, OtherNumbers) {
-  scoped_refptr<Histogram> histogram;
+  Histogram* histogram;
 
   // First we'll preserve the original values.
   int64 original_received_bytes = 0;