Upating the app, ceee, chrome, ipc, media, and net directories to use the correct lock.h file.

base/threading/thread_checker.h

 // Copyright (c) 2010 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 BASE_THREADING_THREAD_CHECKER_H_
 #define BASE_THREADING_THREAD_CHECKER_H_
 #pragma once
 
 #ifndef NDEBUG
-#include "base/lock.h"
+#include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 #endif // NDEBUG
 
 namespace base {
 
 // Before using this class, please consider using NonThreadSafe as it
 // makes it much easier to determine the nature of your class.
 //
 // A helper class used to help verify that some methods of a class are
 // called from the same thread.  One can inherit from this class and use
@@ skipping 23 matching lines @@
   bool CalledOnValidThread() const;
 
   // Changes the thread that is checked for in CalledOnValidThread.  This may
   // be useful when an object may be created on one thread and then used
   // exclusively on another thread.
   void DetachFromThread();
 
  private:
   void EnsureThreadIdAssigned() const;
 
-  mutable Lock lock_;
+  mutable base::Lock lock_;
   // This is mutable so that CalledOnValidThread can set it.
   // It's guarded by |lock_|.
   mutable PlatformThreadId valid_thread_id_;
 };
 #else
 // Do nothing in release mode.
 class ThreadChecker {
  public:
   bool CalledOnValidThread() const {
     return true;
   }
 
   void DetachFromThread() {}
 };
 #endif  // NDEBUG
 
 }  // namespace base
 
 #endif  // BASE_THREADING_THREAD_CHECKER_H_