libchrome: Several upstreamable fixes from libchrome

base/values.cc

Index: base/values.cc
diff --git a/base/values.cc b/base/values.cc
index 1b87498738a31529874a1880b03857f4a15b8368..8becfc3336ac5bcead39489e33f9197dfa5075c9 100644
--- a/base/values.cc
+++ b/base/values.cc
@@ -94,47 +94,47 @@ std::unique_ptr<Value> Value::CreateNullValue() {
   return WrapUnique(new Value(TYPE_NULL));
 }
 
-bool Value::GetAsBinary(const BinaryValue** out_value) const {
+bool Value::GetAsBinary(const BinaryValue** /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsBoolean(bool* out_value) const {
+bool Value::GetAsBoolean(bool* /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsInteger(int* out_value) const {
+bool Value::GetAsInteger(int* /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsDouble(double* out_value) const {
+bool Value::GetAsDouble(double* /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsString(std::string* out_value) const {
+bool Value::GetAsString(std::string* /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsString(string16* out_value) const {
+bool Value::GetAsString(string16* /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsString(const StringValue** out_value) const {
+bool Value::GetAsString(const StringValue** /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsList(ListValue** out_value) {
+bool Value::GetAsList(ListValue** /* out_value */) {
   return false;
 }
 
-bool Value::GetAsList(const ListValue** out_value) const {
+bool Value::GetAsList(const ListValue** /* out_value */) const {
   return false;
 }
 
-bool Value::GetAsDictionary(DictionaryValue** out_value) {
+bool Value::GetAsDictionary(DictionaryValue** /* out_value */) {
   return false;
 }
 
-bool Value::GetAsDictionary(const DictionaryValue** out_value) const {
+bool Value::GetAsDictionary(const DictionaryValue** /* out_value */) const {
   return false;
 }