Update CrOS to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/chromeos/drive/search_metadata.cc

 // Copyright (c) 2013 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/chromeos/drive/search_metadata.h"
 
 #include <algorithm>
 #include <queue>
 
 #include "base/bind.h"
@@ skipping 180 matching lines @@
     const std::string& query,
     int options,
     int at_most_num_matches,
     const SearchMetadataCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK_LE(0, at_most_num_matches);
   DCHECK(!callback.is_null());
 
   // TODO(hashimoto): Report error code from ResourceMetadata::IterateEntries
   // and stop binding FILE_ERROR_OK to |callback|.
-  base::PostTaskAndReplyWithResult(
-      blocking_task_runner,
-      FROM_HERE,
-      base::Bind(&SearchMetadataOnBlockingPool,
-                 resource_metadata,
-                 cache,
-                 query,
-                 options,
-                 at_most_num_matches),
-      base::Bind(callback, FILE_ERROR_OK));
+  base::PostTaskAndReplyWithResult(blocking_task_runner.get(),
+                                   FROM_HERE,
+                                   base::Bind(&SearchMetadataOnBlockingPool,
+                                              resource_metadata,
+                                              cache,
+                                              query,
+                                              options,
+                                              at_most_num_matches),
+                                   base::Bind(callback, FILE_ERROR_OK));
 }
 
 bool FindAndHighlight(const std::string& text,
                       const std::string& query,
                       std::string* highlighted_text) {
   DCHECK(highlighted_text);
   highlighted_text->clear();
 
   // For empty query, any filename matches with no highlighted text.
   if (query.empty())
@@ skipping 13 matching lines @@
   highlighted_text->append(net::EscapeForHTML(UTF16ToUTF8(pre)));
   highlighted_text->append("<b>");
   highlighted_text->append(net::EscapeForHTML(UTF16ToUTF8(match)));
   highlighted_text->append("</b>");
   highlighted_text->append(net::EscapeForHTML(UTF16ToUTF8(post)));
   return true;
 }
 
 }  // namespace internal
 }  // namespace drive