More base::Values-related bare pointer -> scoped_ptr conversions

base/values.cc

Index: base/values.cc
diff --git a/base/values.cc b/base/values.cc
index f448f51d2bd3821005d85e976418882c1230466c..4093eba67aaf39be6ef8f648e49dfebacce1c39c 100644
--- a/base/values.cc
+++ b/base/values.cc
@@ -85,8 +85,8 @@ Value::~Value() {
 }
 
 // static
-Value* Value::CreateNullValue() {
-  return new Value(TYPE_NULL);
+scoped_ptr<Value> Value::CreateNullValue() {
+  return make_scoped_ptr(new Value(TYPE_NULL));
 }
 
 bool Value::GetAsBinary(const BinaryValue** out_value) const {
@@ -137,7 +137,7 @@ Value* Value::DeepCopy() const {
   // This method should only be getting called for null Values--all subclasses
   // need to provide their own implementation;.
   DCHECK(IsType(TYPE_NULL));
-  return CreateNullValue();
+  return CreateNullValue().release();
 }
 
 scoped_ptr<Value> Value::CreateDeepCopy() const {
@@ -1137,6 +1137,10 @@ ListValue* ListValue::DeepCopy() const {
   return result;
 }
 
+scoped_ptr<ListValue> ListValue::CreateDeepCopy() const {
+  return make_scoped_ptr(DeepCopy());
+}
+
 bool ListValue::Equals(const Value* other) const {
   if (other->GetType() != GetType())
     return false;