Use ASCII strings for switch names.

chrome/common/logging_chrome.cc

Index: chrome/common/logging_chrome.cc
diff --git a/chrome/common/logging_chrome.cc b/chrome/common/logging_chrome.cc
index ae0b48eacacd77ab1b05f5e8a126412b9a0d5092..323646884c6d1a01ce95403ab4a15e033758a97c 100644
--- a/chrome/common/logging_chrome.cc
+++ b/chrome/common/logging_chrome.cc
@@ -100,12 +100,12 @@ void InitChromeLogging(const CommandLine& command_line,
   // only use OutputDebugString in debug mode
 #ifdef NDEBUG
   bool enable_logging = false;
-  const wchar_t *kInvertLoggingSwitch = switches::kEnableLogging;
+  const char *kInvertLoggingSwitch = switches::kEnableLogging;
   const logging::LoggingDestination kDefaultLoggingMode =
       logging::LOG_ONLY_TO_FILE;
 #else
   bool enable_logging = true;
-  const wchar_t *kInvertLoggingSwitch = switches::kDisableLogging;
+  const char *kInvertLoggingSwitch = switches::kDisableLogging;
   const logging::LoggingDestination kDefaultLoggingMode =
       logging::LOG_TO_BOTH_FILE_AND_SYSTEM_DEBUG_LOG;
 #endif