Remove unneeded uses of logging.h in header files.

tools/memory_watcher/memory_watcher.h

 // Copyright (c) 2006-2008 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.
 
 // MemoryWatcher.
 // The MemoryWatcher is a library that can be linked into any
 // win32 application.  It will override the default memory allocators
 // and track call stacks for any allocations that are made.  It can
 // then be used to see what memory is in use.
 
 #ifndef MEMORY_WATCHER_MEMORY_WATCHER_
 #define MEMORY_WATCHER_MEMORY_WATCHER_
 
 #include <map>
 #include <functional>
 #include "base/lock.h"
-#include "base/logging.h"
 #include "tools/memory_watcher/memory_hook.h"
 
 class CallStack;
 class AllocationStack;
 
 // The MemoryWatcher installs allocation hooks and monitors
 // allocations and frees.
 class MemoryWatcher : MemoryObserver {
  public:
   MemoryWatcher();
@@ skipping 53 matching lines @@
   std::string file_name_;
 
   // An optional name that appears in the log file name (used to differentiate
   // logs).
   std::string log_name_;
 };
 
 
 
 #endif  // MEMORY_WATCHER_