Add OS_CHROMEOS case in file_util::GetHomeDir()

webkit/chromeos/fileapi/cros_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/chromeos/fileapi/cros_mount_point_provider.h"
 
 #include "base/chromeos/chromeos_version.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
+#include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "base/synchronization/lock.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFileSystem.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 #include "webkit/chromeos/fileapi/file_access_permissions.h"
 #include "webkit/chromeos/fileapi/remote_file_stream_writer.h"
 #include "webkit/chromeos/fileapi/remote_file_system_operation.h"
 #include "webkit/fileapi/file_system_file_stream_reader.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/local_file_stream_writer.h"
 #include "webkit/fileapi/local_file_system_operation.h"
 #include "webkit/glue/webkit_glue.h"
 
 namespace {
 
 const char kChromeUIScheme[] = "chrome";
 
-// Returns the home directory path, or an empty string if the home directory
-// is not found.
-std::string GetHomeDirectory() {
-  if (base::chromeos::IsRunningOnChromeOS())
-    return "/home/chronos/user";
-
-  const char* home = getenv("HOME");
-  if (home)
-    return home;
-  return "";
-}
-
 }  // namespace
 
 namespace chromeos {
 
 CrosMountPointProvider::MountPoint::MountPoint(
     const FilePath& in_web_root_path,
     const FilePath& in_local_root_path,
     FileSystemLocation in_location,
     fileapi::RemoteFileSystemProxyInterface* in_proxy)
         : web_root_path(in_web_root_path), local_root_path(in_local_root_path),
           location(in_location), remote_proxy(in_proxy) {
 }
 
 CrosMountPointProvider::MountPoint::~MountPoint() {
 }
 
 CrosMountPointProvider::CrosMountPointProvider(
     scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy)
     : special_storage_policy_(special_storage_policy),
       file_access_permissions_(new FileAccessPermissions()),
       local_file_util_(new fileapi::LocalFileUtil()) {
-  const std::string home = GetHomeDirectory();
-  if (!home.empty()) {
-    AddLocalMountPoint(
-        FilePath::FromUTF8Unsafe(home).AppendASCII("Downloads"));
-  }
+  FilePath home_path;
+  if (PathService::Get(base::DIR_HOME, &home_path))
+    AddLocalMountPoint(home_path.AppendASCII("Downloads"));
   AddLocalMountPoint(FilePath(FILE_PATH_LITERAL("/media/archive")));
   AddLocalMountPoint(FilePath(FILE_PATH_LITERAL("/media/removable")));
 }
 
 CrosMountPointProvider::~CrosMountPointProvider() {
 }
 
 bool CrosMountPointProvider::GetRootForVirtualPath(
     const FilePath& virtual_path, FilePath* root_path) {
   const MountPoint* mount_point = GetMountPoint(virtual_path);
@@ skipping 227 matching lines @@
     if (mount_prefix == filesystem_path) {
       return true;
     } else if (mount_prefix.AppendRelativePath(filesystem_path, virtual_path)) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace chromeos