FBTF: Remove unneeded headers from base/ (part 2)

chrome/browser/renderer_host/audio_renderer_host.cc

 // 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.
 
 #include "chrome/browser/renderer_host/audio_renderer_host.h"
 
 #include "base/histogram.h"
 #include "base/lock.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "base/sys_info.h"
-#include "base/waitable_event.h"
 #include "chrome/browser/renderer_host/audio_sync_reader.h"
 #include "chrome/common/render_messages.h"
 #include "ipc/ipc_logging.h"
 
 // The minimum number of samples in a hardware packet.
 // This value is selected so that we can handle down to 5khz sample rate.
 static const int kMinSamplesPerHardwarePacket = 1024;
 
 // The maximum number of samples in a hardware packet.
 // This value is selected so that we can handle up to 192khz sample rate.
@@ skipping 550 matching lines @@
 
   // Iterate the map of entries.
   // TODO(hclam): Implement a faster look up method.
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     if (controller == i->second->controller.get())
       return i->second;
   }
   return NULL;
 }