Add missing (and remove superfluous) 'explicit' from constructors.

base/synchronization/condition_variable_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.
 
 // Multi-threaded tests of ConditionVariable class.
 
 #include <time.h>
 #include <algorithm>
 #include <vector>
 
@@ skipping 17 matching lines @@
 
 class ConditionVariableTest : public PlatformTest {
  public:
   const TimeDelta kZeroMs;
   const TimeDelta kTenMs;
   const TimeDelta kThirtyMs;
   const TimeDelta kFortyFiveMs;
   const TimeDelta kSixtyMs;
   const TimeDelta kOneHundredMs;
 
-  explicit ConditionVariableTest()
+  ConditionVariableTest()
       : kZeroMs(TimeDelta::FromMilliseconds(0)),
         kTenMs(TimeDelta::FromMilliseconds(10)),
         kThirtyMs(TimeDelta::FromMilliseconds(30)),
         kFortyFiveMs(TimeDelta::FromMilliseconds(45)),
         kSixtyMs(TimeDelta::FromMilliseconds(60)),
         kOneHundredMs(TimeDelta::FromMilliseconds(100)) {
   }
 };
 
 //------------------------------------------------------------------------------
@@ skipping 657 matching lines @@
       base::AutoLock auto_lock(lock_);
       // Send notification that we completed our "work."
       WorkIsCompleted(thread_id);
     }
   }
 }
 
 }  // namespace
 
 }  // namespace base