Remove implicit conversions from scoped_refptr to T* in chrome/

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 347 matching lines @@
     const FileChooserParams& params) {
   if (!render_view_host_ || !web_contents_) {
     // If the renderer was destroyed before we started, just cancel the
     // operation.
     RunFileChooserEnd();
     return;
   }
 
   select_file_dialog_ = ui::SelectFileDialog::Create(
       this, new ChromeSelectFilePolicy(web_contents_));
-  if (!select_file_dialog_)
+  if (!select_file_dialog_.get())
     return;
 
   dialog_mode_ = params.mode;
   switch (params.mode) {
     case FileChooserParams::Open:
       dialog_type_ = ui::SelectFileDialog::SELECT_OPEN_FILE;
       break;
     case FileChooserParams::OpenMultiple:
       dialog_type_ = ui::SelectFileDialog::SELECT_OPEN_MULTI_FILE;
       break;
@@ skipping 99 matching lines @@
   // of an extension or a "/" in the case of a MIME type).
   std::string unused;
   if (accept_type.length() <= 1 ||
       base::StringToLowerASCII(accept_type) != accept_type ||
       base::TrimWhitespaceASCII(accept_type, base::TRIM_ALL, &unused) !=
           base::TRIM_NONE) {
     return false;
   }
   return true;
 }