[TimeZoneMonitor] Decouple renderer side impl from content to blink.

third_party/WebKit/Source/modules/ModulesInitializer.h

 // Copyright (c) 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.
 
 #ifndef ModulesInitializer_h
 #define ModulesInitializer_h
 
 #include "core/CoreInitializer.h"
 #include "modules/ModulesExport.h"
 
 namespace blink {
 
 class MODULES_EXPORT ModulesInitializer : public CoreInitializer {
  public:
   void initialize() override;
   void shutdown() override;
+  void initializeMojo();

[blundell, 2016/10/18 12:32:11]

I'm not sure on Blink conventions re: comments on methods. I would ordinarily
say that this deserves a client on why it's a separate method and what its
preconditions are (that the platform thread needs to exist).

+
+ private:
+  bool m_isMojoInitialized = false;
 };
 
 }  // namespace blink
 
 #endif  // ModulesInitializer_h