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

media/audio/win/audio_unified_win_unittest.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 "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/test/test_timeouts.h"
@@ skipping 51 matching lines @@
 class UnifiedSourceCallback : public AudioOutputStream::AudioSourceCallback {
  public:
   explicit UnifiedSourceCallback()
       : previous_call_time_(base::Time::Now()),
         text_file_(NULL),
         elements_to_write_(0) {
     delta_times_.reset(new int[kMaxDeltaSamples]);
   }
 
   virtual ~UnifiedSourceCallback() {
-    FilePath file_name;
+    base::FilePath file_name;
     EXPECT_TRUE(PathService::Get(base::DIR_EXE, &file_name));
     file_name = file_name.AppendASCII(kDeltaTimeMsFileName);
 
     EXPECT_TRUE(!text_file_);
     text_file_ = file_util::OpenFile(file_name, "wt");
     DLOG_IF(ERROR, !text_file_) << "Failed to open log file.";
     LOG(INFO) << ">> Output file " << file_name.value() << " has been created.";
 
     // Write the array which contains delta times to a text file.
     size_t elements_written = 0;
@@ skipping 196 matching lines @@
 
   EXPECT_TRUE(wus->Open());
   wus->Start(&source);
   loop.PostDelayedTask(FROM_HERE, MessageLoop::QuitClosure(),
                        base::TimeDelta::FromMilliseconds(10000));
   loop.Run();
   wus->Close();
 }
 
 }  // namespace media