Delete TSan suppressions for base::Histogram.

build/sanitizers/tsan_suppressions.cc

 // Copyright 2014 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.
 
 // This file contains the default suppressions for ThreadSanitizer.
 // You can also pass additional suppressions via TSAN_OPTIONS:
 // TSAN_OPTIONS=suppressions=/path/to/suppressions. Please refer to
 // http://dev.chromium.org/developers/testing/threadsanitizer-tsan-v2
 // for more info.
 
@@ skipping 11 matching lines @@
 
 // Intentional race in ToolsSanityTest.DataRace in base_unittests.
 "race:base/tools_sanity_unittest.cc\n"
 
 // Data race on WatchdogCounter [test-only].
 "race:base/threading/watchdog_unittest.cc\n"
 
 // Races in libevent, http://crbug.com/23244.
 "race:libevent/event.c\n"
 
-// http://crbug.com/46840.
-"race:base::HistogramSamples::IncreaseSum\n"
-"race:base::Histogram::Add\n"
-"race:base::HistogramSamples::Add\n"
-
 // http://crbug.com/84094.
 "race:sqlite3StatusSet\n"
 "race:pcache1EnforceMaxPage\n"
 "race:pcache1AllocPage\n"
 
 // http://crbug.com/102327.
 // Test-only race, won't fix.
 "race:tracked_objects::ThreadData::ShutdownSingleThreadedCleanup\n"
 
 // http://crbug.com/120808
@@ skipping 224 matching lines @@
 "race:base::TimerTest_OneShotTimer_CustomTaskRunner_Test::TestBody\n"
 
 // http://crbug.com/v8/6065
 "race:net::(anonymous namespace)::ProxyResolverV8TracingImpl::RequestImpl"
 "::~RequestImpl()\n"
 
 // End of suppressions.
 ;  // Please keep this semicolon.
 
 #endif  // THREAD_SANITIZER