Canary versions no longer always remove protocol handlers at startup.

chrome/browser/shell_integration.cc

 // Copyright (c) 2011 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/shell_integration.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "content/browser/browser_thread.h"
 
-bool ShellIntegration::CanSetAsDefaultProtocolClient(
-    const std::string& protocol) {
+bool ShellIntegration::CanSetAsDefaultProtocolClient() {
   // Allowed as long as the browser can become the operating system default
   // browser.
   return CanSetAsDefaultBrowser();
 }
 
 ShellIntegration::ShortcutInfo::ShortcutInfo()
     : create_on_desktop(false),
       create_in_applications_menu(false),
       create_in_quick_launch_bar(false) {
 }
@@ skipping 160 matching lines @@
 // DefaultProtocolClientWorker, private:
 
 ShellIntegration::DefaultWebClientState
 ShellIntegration::DefaultProtocolClientWorker::CheckIsDefault() {
   return ShellIntegration::IsDefaultProtocolClient(protocol_);
 }
 
 void ShellIntegration::DefaultProtocolClientWorker::SetAsDefault() {
   ShellIntegration::SetAsDefaultProtocolClient(protocol_);
 }