Remove deprecated wstring Get(As)String() methods from Value, etc.

chrome/installer/util/master_preferences_dummy.cc

Index: chrome/installer/util/master_preferences_dummy.cc
diff --git a/chrome/installer/util/master_preferences_dummy.cc b/chrome/installer/util/master_preferences_dummy.cc
index 44131871470522ec0ff792e2a11a1d2917b16902..f11a4450e64a5aa3a9a1318340fe1acd6c154be2 100644
--- a/chrome/installer/util/master_preferences_dummy.cc
+++ b/chrome/installer/util/master_preferences_dummy.cc
@@ -19,7 +19,7 @@
 namespace installer_util {
 
 bool GetDistroBooleanPreference(const DictionaryValue* prefs,
-                                const std::wstring& name,
+                                const std::string& name,
                                 bool* value) {
   // This function is called by InstallUtil::IsChromeFrameProcess()
   // We return false because GetInstallPreferences returns an empty value below.
@@ -27,7 +27,7 @@ bool GetDistroBooleanPreference(const DictionaryValue* prefs,
 }
 
 bool GetDistroIntegerPreference(const DictionaryValue* prefs,
-                                const std::wstring& name,
+                                const std::string& name,
                                 int* value) {
   NOTREACHED();
   return false;
@@ -56,7 +56,7 @@ std::vector<GURL> GetDefaultBookmarks(const DictionaryValue* prefs) {
 }
 
 bool SetDistroBooleanPreference(DictionaryValue* prefs,
-                                const std::wstring& name,
+                                const std::string& name,
                                 bool value) {
   NOTREACHED();
   return false;