Add support for int64 and uint64 in values.h's API.

base/prefs/pref_registry_simple.cc

Index: base/prefs/pref_registry_simple.cc
diff --git a/base/prefs/pref_registry_simple.cc b/base/prefs/pref_registry_simple.cc
index 7453016a272f9d39b5b88376a7a4975a2d9e46d7..fa97fd6d075c53c0bdb860d32c89dea0e159c71d 100644
--- a/base/prefs/pref_registry_simple.cc
+++ b/base/prefs/pref_registry_simple.cc
@@ -5,7 +5,6 @@
 #include "base/prefs/pref_registry_simple.h"
 
 #include "base/files/file_path.h"
-#include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 
 PrefRegistrySimple::PrefRegistrySimple() {
@@ -34,6 +33,16 @@ void PrefRegistrySimple::RegisterStringPref(const char* path,
   RegisterPreference(path, new base::StringValue(default_value));
 }
 
+void PrefRegistrySimple::RegisterInt64Pref(const char* path,
+                                           int64 default_value) {
+  RegisterPreference(path, new base::StringValue(default_value));
+}
+
+void PrefRegistrySimple::RegisterUint64Pref(const char* path,
+                                            uint64 default_value) {
+  RegisterPreference(path, new base::StringValue(default_value));
+}
+
 void PrefRegistrySimple::RegisterFilePathPref(
     const char* path,
     const base::FilePath& default_value) {
@@ -58,9 +67,3 @@ void PrefRegistrySimple::RegisterDictionaryPref(
     base::DictionaryValue* default_value) {
   RegisterPreference(path, default_value);
 }
-
-void PrefRegistrySimple::RegisterInt64Pref(const char* path,
-                                           int64 default_value) {
-  RegisterPreference(
-      path, new base::StringValue(base::Int64ToString(default_value)));
-}