GData save package support with MHTML.

chrome/browser/download/chrome_download_manager_delegate.cc

Index: chrome/browser/download/chrome_download_manager_delegate.cc
===================================================================
--- chrome/browser/download/chrome_download_manager_delegate.cc	(revision 128869)
+++ chrome/browser/download/chrome_download_manager_delegate.cc	(working copy)
@@ -48,6 +48,7 @@
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/gdata/gdata_download_observer.h"
 #include "chrome/browser/download/download_file_picker_chromeos.h"
+#include "chrome/browser/download/save_package_file_picker_chromeos.h"
 #endif
 
 using content::BrowserThread;
@@ -317,7 +318,11 @@
     bool can_save_as_complete,
     content::SaveFilePathPickedCallback callback) {
   // Deletes itself.
+#if defined(OS_CHROMEOS)
+  new SavePackageFilePickerChromeOS(
+#else
   new SavePackageFilePicker(
+#endif
       web_contents, suggested_path, default_extension, can_save_as_complete,
       download_prefs_.get(), callback);
 }