Change the meaning of SelectFileDialog.support_drive: it means Drive-aware callers.

chrome/browser/file_select_helper.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 "chrome/browser/file_select_helper.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 217 matching lines @@
     entry->rvh_->DirectoryEnumerationFinished(id, entry->results_);
 
   EnumerateDirectoryEnd();
 }
 
 scoped_ptr<ui::SelectFileDialog::FileTypeInfo>
 FileSelectHelper::GetFileTypesFromAcceptType(
     const std::vector<string16>& accept_types) {
   scoped_ptr<ui::SelectFileDialog::FileTypeInfo> base_file_type(
       new ui::SelectFileDialog::FileTypeInfo());
-  base_file_type->support_drive = true;
   if (accept_types.empty())
     return base_file_type.Pass();
 
   // Create FileTypeInfo and pre-allocate for the first extension list.
   scoped_ptr<ui::SelectFileDialog::FileTypeInfo> file_type(
       new ui::SelectFileDialog::FileTypeInfo(*base_file_type));
   file_type->include_all_files = true;
   file_type->extensions.resize(1);
   std::vector<base::FilePath::StringType>* extensions =
       &file_type->extensions.back();
@@ skipping 229 matching lines @@
   // A 1 character accept type will always be invalid (either a "." in the case
   // of an extension or a "/" in the case of a MIME type).
   std::string unused;
   if (accept_type.length() <= 1 ||
       StringToLowerASCII(accept_type) != accept_type ||
       TrimWhitespaceASCII(accept_type, TRIM_ALL, &unused) != TRIM_NONE) {
     return false;
   }
   return true;
 }