Cleanup: Remove using statements from webkit/fileapi header files.

webkit/fileapi/obfuscated_file_util.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 "webkit/fileapi/obfuscated_file_util.h"
 
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
-#include "base/metrics/histogram.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "base/sys_string_conversions.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/fileapi/file_observers.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/file_system_util.h"
@@ skipping 927 matching lines @@
     if (!file_util::Delete(origin_type_path, true /* recursive */))
       return false;
   }
 
   FilePath origin_path = origin_type_path.DirName();
   DCHECK_EQ(origin_path.value(),
             GetDirectoryForOrigin(origin, false, NULL).value());
 
   // At this point we are sure we had successfully deleted the origin/type
   // directory (i.e. we're ready to just return true).
-
   // See if we have other directories in this origin directory.
   std::vector<FileSystemType> other_types;
   if (type != kFileSystemTypeTemporary)
     other_types.push_back(kFileSystemTypeTemporary);
   if (type != kFileSystemTypePersistent)
     other_types.push_back(kFileSystemTypePersistent);
   if (type != kFileSystemTypeSyncable)
     other_types.push_back(kFileSystemTypeSyncable);
 
   for (size_t i = 0; i < other_types.size(); ++i) {
@@ skipping 351 matching lines @@
   error = NativeFileUtil::CreateDirectory(
       new_local_path, false /* exclusive */, false /* recursive */);
   if (error != base::PLATFORM_FILE_OK)
     return error;
 
   *local_path = new_local_path.AppendASCII(StringPrintf("%08" PRId64, number));
   return base::PLATFORM_FILE_OK;
 }
 
 }  // namespace fileapi