Allow chrome to become the os default handler for arbitrary protocols on mac/win.

chrome/installer/util/util_constants.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/installer/util/util_constants.h"
 
 namespace installer {
 
 namespace switches {
 
@@ skipping 88 matching lines @@
 const char kNewSetupExe[] = "new-setup-exe";
 
 // Register Chrome as a valid browser on the current sytem. This option
 // requires that setup.exe is running as admin. If this option is specified,
 // options kInstallArchive and kUninstall are ignored.
 const char kRegisterChromeBrowser[] = "register-chrome-browser";
 
 const char kRegisterChromeBrowserSuffix[] =
     "register-chrome-browser-suffix";
 
+// Switch to allow an extra URL protocol to be registered. This option is used
+// in conjunction with kRegisterChromeBrowser to specify an extra protocol
+// in addition to the standard set of protocols.
+const char kRegisterURLProtocol[] = "register-url-protocol";
+
 // Renames chrome.exe to old_chrome.exe and renames new_chrome.exe to chrome.exe
 // to support in-use updates. Also deletes opv key.
 const char kRenameChromeExe[] = "rename-chrome-exe";
 
 // Removes Chrome registration from current machine. Requires admin rights.
 const char kRemoveChromeRegistration[] = "remove-chrome-registration";
 
 // When we try to relaunch setup.exe as admin on Vista, we append this command
 // line flag so that we try the launch only once.
 const char kRunAsAdmin[] = "run-as-admin";
@@ skipping 65 matching lines @@
 const wchar_t kInstallerError[] = L"InstallerError";
 const wchar_t kInstallerResultUIString[] = L"InstallerResultUIString";
 const wchar_t kInstallerSuccessLaunchCmdLine[] =
     L"InstallerSuccessLaunchCmdLine";
 
 const wchar_t kOptionCeee[] = L"ceee";
 const wchar_t kOptionMultiInstall[] = L"multi-install";
 const wchar_t kOptionReadyMode[] = L"ready-mode";
 
 }  // namespace installer