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

jingle/glue/thread_wrapper.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.
 
 #include "jingle/glue/thread_wrapper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/threading/thread_local.h"
 #include "third_party/libjingle/source/talk/base/nullsocketserver.h"
 
 namespace jingle_glue {
 
 struct JingleThreadWrapper::PendingSend {
-  PendingSend(const talk_base::Message& message_value)
+  explicit PendingSend(const talk_base::Message& message_value)
       : sending_thread(JingleThreadWrapper::current()),
         message(message_value),
         done_event(true, false) {
     DCHECK(sending_thread);
   }
 
   JingleThreadWrapper* sending_thread;
   talk_base::Message message;
   base::WaitableEvent done_event;
 };
@@ skipping 266 matching lines @@
 
 void JingleThreadWrapper::Stop() {
   NOTREACHED();
 }
 
 void JingleThreadWrapper::Run() {
   NOTREACHED();
 }
 
 }  // namespace jingle_glue