wstring: remove a needless wchar_t that is ASCII

chrome/common/chrome_constants.cc

Index: chrome/common/chrome_constants.cc
diff --git a/chrome/common/chrome_constants.cc b/chrome/common/chrome_constants.cc
index 648ee3d8b39e940c9df3300b87b84fa34a0809b3..f1752c8b258b7fcf813a4ef0415b53054f1f18dc 100644
--- a/chrome/common/chrome_constants.cc
+++ b/chrome/common/chrome_constants.cc
@@ -69,8 +69,7 @@ const wchar_t kStatusTrayWindowClass[] = L"Chrome_StatusTrayWindow";
 const wchar_t kMessageWindowClass[] = L"Chrome_MessageWindow";
 const wchar_t kCrashReportLog[] = L"Reported Crashes.txt";
 const wchar_t kTestingInterfaceDLL[] = L"testing_interface.dll";
-const wchar_t kNotSignedInProfile[] = L"Default";
-const wchar_t kNotSignedInID[] = L"not-signed-in";
+const char    kNotSignedInProfile[] = "Default";
 const wchar_t kBrowserResourcesDll[] = L"chrome.dll";
 const FilePath::CharType kExtensionFileExtension[] = FPL(".crx");
 const FilePath::CharType kExtensionKeyFileExtension[] = FPL(".pem");