Convert download manager to FilePath.

chrome/browser/download/download_file.cc

Index: chrome/browser/download/download_file.cc
===================================================================
--- chrome/browser/download/download_file.cc	(revision 7599)
+++ chrome/browser/download/download_file.cc	(working copy)
@@ -85,22 +85,21 @@
 
 void DownloadFile::Cancel() {
   Close();
-  DeleteFile(full_path_.c_str());
+  file_util::Delete(full_path_, false);
 }
 
 // The UI has provided us with our finalized name.
-bool DownloadFile::Rename(const std::wstring& new_path) {
+bool DownloadFile::Rename(const FilePath& new_path) {
   Close();
 
   // We cannot rename because rename will keep the same security descriptor
   // on the destination file. We want to recreate the security descriptor
   // with the security that makes sense in the new path.
-  if (!file_util::RenameFileAndResetSecurityDescriptor(full_path_.c_str(),
-                                                       new_path.c_str())) {
+  if (!file_util::RenameFileAndResetSecurityDescriptor(full_path_, new_path)) {
     return false;
   }
 
-  DeleteFile(full_path_.c_str());
+  file_util::Delete(full_path_, false);
 
   full_path_ = new_path;
   path_renamed_ = true;
@@ -512,15 +511,15 @@
 // Open a download, or show it in a Windows Explorer window. We run on this
 // thread to avoid blocking the UI with (potentially) slow Shell operations.
 // TODO(paulg): File 'stat' operations.
-void DownloadFileManager::OnShowDownloadInShell(const std::wstring full_path) {
+void DownloadFileManager::OnShowDownloadInShell(const FilePath& full_path) {
   DCHECK(MessageLoop::current() == file_loop_);
-  win_util::ShowItemInFolder(full_path);
+  win_util::ShowItemInFolder(full_path.value());
 }
 
 // Launches the selected download using ShellExecute 'open' verb. If there is
 // a valid parent window, the 'safer' version will be used which can
 // display a modal dialog asking for user consent on dangerous files.
-void DownloadFileManager::OnOpenDownloadInShell(const std::wstring full_path,
+void DownloadFileManager::OnOpenDownloadInShell(const FilePath& full_path,
                                                 const std::wstring& url,
                                                 HWND parent_window) {
   DCHECK(MessageLoop::current() == file_loop_);
@@ -535,15 +534,13 @@
 // download specified by 'id'. Rename the in progress download, and remove it
 // from our table if it has been completed or cancelled already.
 void DownloadFileManager::OnFinalDownloadName(int id,
-                                              const std::wstring& full_path) {
+                                              const FilePath& full_path) {
   DCHECK(MessageLoop::current() == file_loop_);
   DownloadFileMap::iterator it = downloads_.find(id);
   if (it == downloads_.end())
     return;
 
-  std::wstring download_dir = file_util::GetDirectoryFromPath(full_path);
-  if (!file_util::PathExists(download_dir))
-    file_util::CreateDirectory(download_dir);
+  file_util::CreateDirectory(full_path.DirName());
 
   DownloadFile* download = it->second;
   if (!download->Rename(full_path)) {
@@ -576,13 +573,9 @@
         this, &DownloadFileManager::StopUpdateTimer));
 }
 
-void DownloadFileManager::CreateDirectory(const std::wstring& directory) {
-  if (!file_util::PathExists(directory))
-    file_util::CreateDirectory(directory);
-}
-
-void DownloadFileManager::DeleteFile(const std::wstring& path) {
+// static
+void DownloadFileManager::DeleteFile(const FilePath& path) {
   // Make sure we only delete files.
-  if (file_util::PathExists(path) && !file_util::DirectoryExists(path))
+  if (!file_util::DirectoryExists(path))
     file_util::Delete(path, false);
 }