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

ui/base/dragdrop/os_exchange_data_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/memory/ref_counted.h"
 #include "base/memory/scoped_handle.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "base/utf_string_conversions.h"
 #include "base/win/scoped_hglobal.h"
@@ skipping 343 matching lines @@
   int value;
   EXPECT_TRUE(restored_pickle.ReadInt(&iterator, &value));
   EXPECT_EQ(1, value);
   EXPECT_TRUE(restored_pickle.ReadInt(&iterator, &value));
   EXPECT_EQ(2, value);
 }
 
 TEST(OSExchangeDataTest, FileContents) {
   OSExchangeData data;
   std::string file_contents("data\0with\0nulls", 15);
-  data.SetFileContents(FilePath(L"filename.txt"), file_contents);
+  data.SetFileContents(base::FilePath(L"filename.txt"), file_contents);
 
   OSExchangeData copy(CloneProvider(data));
-  FilePath filename;
+  base::FilePath filename;
   std::string read_contents;
   EXPECT_TRUE(copy.GetFileContents(&filename, &read_contents));
   EXPECT_EQ(L"filename.txt", filename.value());
   EXPECT_EQ(file_contents, read_contents);
 }
 
 TEST(OSExchangeDataTest, Html) {
   OSExchangeData data;
   GURL url("http://www.google.com/");
   std::wstring html(
@@ skipping 38 matching lines @@
 
   OSExchangeData data2(CloneProvider(data));
   ASSERT_TRUE(data2.HasURL());
   GURL read_url;
   std::wstring title;
   EXPECT_TRUE(data2.GetURLAndTitle(&read_url, &title));
   EXPECT_EQ(GURL("http://google.com"), read_url);
 }
 
 }  // namespace ui