Remove GetSwitchValue() from chrome/* where easy.

chrome/installer/setup/uninstall.cc

 // Copyright (c) 2010 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.
 //
 // This file defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 451 matching lines @@
       std::wstring params(cmd_params);
       // Append --run-as-admin flag to let the new instance of setup.exe know
       // that we already tried to launch ourselves as admin.
       params.append(L" --");
       params.append(installer_util::switches::kRunAsAdmin);
       // Append --remove-chrome-registration to remove registry keys only.
       params.append(L" --");
       params.append(installer_util::switches::kRemoveChromeRegistration);
       if (!suffix.empty()) {
         params.append(L" --");
-        params.append(installer_util::switches::kRegisterChromeBrowserSuffix);
+        params.append(ASCIIToWide(
+            installer_util::switches::kRegisterChromeBrowserSuffix));
         params.append(L"=\"" + suffix + L"\"");
       }
       DWORD exit_code = installer_util::UNKNOWN_STATUS;
       InstallUtil::ExecuteExeAsAdmin(exe, params, &exit_code);
     }
   }
 
   // Get the version of installed Chrome (if any)
   scoped_ptr<installer::Version>
       installed_version(InstallUtil::GetChromeVersion(system_uninstall));
@@ skipping 86 matching lines @@
                                     distribution_data);
   }
 
   // Try and delete the preserved local state once the post-install
   // operations are complete.
   if (!local_state_path.empty())
     file_util::Delete(local_state_path, false);
 
   return ret;
 }