Remove GetSwitchValue() from chrome/* where easy.

chrome/installer/util/google_chrome_distribution.cc

Index: chrome/installer/util/google_chrome_distribution.cc
diff --git a/chrome/installer/util/google_chrome_distribution.cc b/chrome/installer/util/google_chrome_distribution.cc
index 15e1d2a055c58bf7d252fc583d95c01bd6cf0c8f..8a2069dfed8176b2225b419aea392a660a9aec76 100644
--- a/chrome/installer/util/google_chrome_distribution.cc
+++ b/chrome/installer/util/google_chrome_distribution.cc
@@ -129,10 +129,10 @@ int GetDirectoryWriteAgeInHours(const wchar_t* path) {
 // Launches again this same process with switch --|flag|=|value|.
 // If system_level_toast is true, appends --system-level-toast.
 // Does not wait for the process to terminate.
-bool RelaunchSetup(const std::wstring& flag, int value,
+bool RelaunchSetup(const std::string& flag, int value,
                    bool system_level_toast) {
   CommandLine cmd_line(CommandLine::ForCurrentProcess()->GetProgram());
-  cmd_line.AppendSwitchASCII(WideToASCII(flag), base::IntToString(value));
+  cmd_line.AppendSwitchASCII(flag, base::IntToString(value));
   if (system_level_toast)
     cmd_line.AppendSwitch(
       WideToASCII(installer_util::switches::kSystemLevelToast));