Convert file url to lowercase to make it match a file handler pattern.

chrome/browser/chromeos/extensions/file_handler_util.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/chromeos/extensions/file_handler_util.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/json/json_writer.h"
 #include "base/string_util.h"
@@ skipping 209 matching lines @@
                                                  matching_patterns));
   }
 
   SortLastUsedHandlerList(named_action_list);
   return true;
 }
 
 bool GetDefaultTask(
     Profile* profile, const GURL& url, const FileBrowserHandler** handler) {
   std::vector<GURL> file_urls;
-  file_urls.push_back(url);
+  std::string url_spec = url.spec();
+  StringToLowerASCII(&url_spec);

[SeRya, 2012/03/14 09:08:55]

How about non-ASCII patterns? A third party app may register that.

[Vladislav Kaznacheev, 2012/03/14 11:08:20]

Done.

+  file_urls.push_back(GURL(url_spec));
 
   LastUsedHandlerList common_tasks;
   if (!FindCommonTasks(profile, file_urls, &common_tasks))
     return false;
 
   if (common_tasks.size() == 0)
     return false;
 
   *handler = common_tasks[0].handler;
   return true;
@@ skipping 297 matching lines @@
   base::JSONWriter::Write(event_args.get(), false, &json_args);
   event_router->DispatchEventToExtension(
       extension_id_, std::string("fileBrowserHandler.onExecute"),
       json_args, profile_,
       GURL());
   Done(true);
 }
 
 } // namespace file_handler_util