FBTF: Remove unneeded headers from base/ (part 9)

chrome/renderer/net/predictor_queue.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.
 
 // DnsQueue is implemented as an almost FIFO circular buffer for text
 // strings that don't have embedded nulls ('\0').  The "almost" element is that
 // some duplicate strings may be removed (i.e., the string won't really be
 // pushed *if* the class happens to notice that a duplicate is already in the
 // queue).
 // The buffers internal format is null terminated character strings
@@ skipping 10 matching lines @@
 // rendering, the supplier is the renderer (typically), and the consumer
 // is a thread that sends messages to an async DNS resolver.
 
 #ifndef CHROME_RENDERER_NET_PREDICTOR_QUEUE_H__
 #define CHROME_RENDERER_NET_PREDICTOR_QUEUE_H__
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
-#include "base/lock.h"
 #include "base/scoped_ptr.h"
 
 class DnsQueue {
  public:
   // BufferSize is a signed type used for indexing into a buffer.
   typedef int32 BufferSize;
 
   enum PushResult { SUCCESSFUL_PUSH, OVERFLOW_PUSH, REDUNDANT_PUSH };
 
   // The size specified in the constructor creates a buffer large enough
@@ skipping 42 matching lines @@
   BufferSize readable_;  // Next readable char in buffer_.
   BufferSize writeable_;  // The next space in buffer_ to push.
 
   // Number of queued strings
   size_t size_;
 
   DISALLOW_COPY_AND_ASSIGN(DnsQueue);
 };  // class DnsQueue
 
 #endif  // CHROME_RENDERER_NET_PREDICTOR_QUEUE_H__