Replace FilePath with base::FilePath in some more top level directories.

media/audio/win/audio_manager_win.cc

 // Copyright (c) 2012 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 "media/audio/audio_io.h"
 
 #include <windows.h>
 #include <objbase.h>  // This has to be before initguid.h
 #include <initguid.h>
 #include <mmsystem.h>
@@ skipping 212 matching lines @@
   std::wstring program;
   std::string argument;
   if (!CoreAudioUtil::IsSupported()) {
     program = L"sndvol32.exe";
     argument = "-R";
   } else {
     program = L"control.exe";
     argument = "mmsys.cpl,,1";
   }
 
-  FilePath path;
+  base::FilePath path;
   PathService::Get(base::DIR_SYSTEM, &path);
   path = path.Append(program);
   CommandLine command_line(path);
   command_line.AppendArg(argument);
   base::LaunchProcess(command_line, base::LaunchOptions(), NULL);
 }
 
 void AudioManagerWin::GetAudioInputDeviceNames(
     media::AudioDeviceNames* device_names) {
   DCHECK(enumeration_type() !=  kUninitializedEnumeration);
@@ skipping 127 matching lines @@
     channel_layout = WASAPIAudioOutputStream::HardwareChannelLayout();
   }
 
   // TODO(dalecurtis): This should include hardware bits per channel eventually.
   return AudioParameters(
       AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout,
       sample_rate, bits_per_sample, GetAudioHardwareBufferSize());
 }
 
 }  // namespace media