Update the TabContents::SavePage parameter to take FilePath instead of wstrin...

chrome/browser/tab_contents/tab_contents.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 
 #include "build/build_config.h"
 
 #include <map>
@@ skipping 540 matching lines @@
 
   // AppModalDialog calls this when the javascript dialog has been destroyed.
   void OnJavaScriptMessageBoxWindowDestroyed();
 
   // Prepare for saving the current web page to disk.
   void OnSavePage();
 
   // Save page with the main HTML file path, the directory for saving resources,
   // and the save type: HTML only or complete web page. Returns true if the
   // saving process has been initiated successfully.
-  bool SavePage(const std::wstring& main_file,
-                const std::wstring& dir_path,
+  bool SavePage(const FilePath& main_file, const FilePath& dir_path,
                 SavePackage::SavePackageType save_type);
 
   // Displays asynchronously a print preview (generated by the renderer) if not
   // already displayed and ask the user for its preferred print settings with
   // the "Print..." dialog box. (managed by the print worker thread).
   // TODO(maruel):  Creates a snapshot of the renderer to be used for the new
   // tab for the printing facility.
   void PrintPreview();
 
   // Prints the current document immediately. Since the rendering is
@@ skipping 579 matching lines @@
   // If this tab was created from a renderer using window.open, this will be
   // non-NULL and represent the DOMUI of the opening renderer.
   DOMUITypeID opener_dom_ui_type_;
 
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_