Delete some unused code found by -Wunused-function

webkit/fileapi/isolated_mount_point_provider.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/isolated_mount_point_provider.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_path.h"
@@ skipping 17 matching lines @@
 #include "webkit/fileapi/media/native_media_file_util.h"
 #include "webkit/fileapi/native_file_util.h"
 
 #if defined(SUPPORT_MEDIA_FILESYSTEM)
 #include "webkit/fileapi/media/device_media_file_util.h"
 #include "webkit/fileapi/media/media_device_map_service.h"
 #endif
 
 namespace fileapi {
 
-namespace {
-
-IsolatedContext* isolated_context() {
-  return IsolatedContext::GetInstance();
-}
-
-}  // namespace
-
 IsolatedMountPointProvider::IsolatedMountPointProvider(
     const FilePath& profile_path)
     : profile_path_(profile_path),
       media_path_filter_(new MediaPathFilter()),
       isolated_file_util_(new IsolatedFileUtil()),
       dragged_file_util_(new DraggedFileUtil()),
       native_media_file_util_(new NativeMediaFileUtil()) {
 #if defined(SUPPORT_MEDIA_FILESYSTEM)
   // TODO(kmadhusu): Initialize |device_media_file_util_| in
   // initialization list.
@@ skipping 118 matching lines @@
 void IsolatedMountPointProvider::DeleteFileSystem(
     const GURL& origin_url,
     FileSystemType type,
     FileSystemContext* context,
     const DeleteFileSystemCallback& callback) {
   NOTREACHED();
   callback.Run(base::PLATFORM_FILE_ERROR_INVALID_OPERATION);
 }
 
 }  // namespace fileapi