Avoids the use of ToWStringHack in a few places....

webkit/tools/test_shell/test_shell_win.cc

 // Copyright (c) 2009 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/tools/test_shell/test_shell.h"
 
 #include <windows.h>
 #include <commdlg.h>
 #include <objbase.h>
 #include <process.h>
@@ skipping 687 matching lines @@
 
 // TODO(tc): Convert this to using resources from test_shell.rc.
 StringPiece GetDataResource(int resource_id) {
   switch (resource_id) {
   case IDR_BROKENIMAGE: {
     // Use webkit's broken image icon (16x16)
     static std::string broken_image_data;
     if (broken_image_data.empty()) {
       FilePath path = GetResourcesFilePath();
       path = path.AppendASCII("missingImage.gif");
-      bool success = file_util::ReadFileToString(path.ToWStringHack(),
-                                                 &broken_image_data);
+      bool success = file_util::ReadFileToString(path, &broken_image_data);
       if (!success) {
         LOG(FATAL) << "Failed reading: " << path.value();
       }
     }
     return broken_image_data;
   }
   case IDR_FEED_PREVIEW:
     // It is necessary to return a feed preview template that contains
     // a {{URL}} substring where the feed URL should go; see the code
     // that computes feed previews in feed_preview.cc:MakeFeedPreview.
     // This fixes issue #932714.
     return "Feed preview for {{URL}}";
   case IDR_TEXTAREA_RESIZER: {
     // Use webkit's text area resizer image.
     static std::string resize_corner_data;
     if (resize_corner_data.empty()) {
       FilePath path = GetResourcesFilePath();
       path = path.AppendASCII("textAreaResizeCorner.png");
-      bool success = file_util::ReadFileToString(path.ToWStringHack(),
-                                                 &resize_corner_data);
+      bool success = file_util::ReadFileToString(path, &resize_corner_data);
       if (!success) {
         LOG(FATAL) << "Failed reading: " << path.value();
       }
     }
     return resize_corner_data;
   }
 
   case IDR_SEARCH_CANCEL:
   case IDR_SEARCH_CANCEL_PRESSED:
   case IDR_SEARCH_MAGNIFIER:
@@ skipping 25 matching lines @@
 
 bool EnsureFontLoaded(HFONT font) {
   return true;
 }
 
 bool DownloadUrl(const std::string& url, HWND caller_window) {
   return false;
 }
 
 }  // namespace webkit_glue