json_schema_compiler: Use std::vector<char> for binary values.

base/values.cc

Index: base/values.cc
diff --git a/base/values.cc b/base/values.cc
index b478b620ca56b0e2a3ed13ff2a007841dd5d9de7..061b7a1a0253454d51a14fb18b5328bcac99cf49 100644
--- a/base/values.cc
+++ b/base/values.cc
@@ -89,6 +89,10 @@ Value* Value::CreateNullValue() {
   return new Value(TYPE_NULL);
 }
 
+bool Value::GetAsBinary(const BinaryValue** out_value) const {
+  return false;
+}
+
 bool Value::GetAsBoolean(bool* out_value) const {
   return false;
 }
@@ -319,6 +323,12 @@ BinaryValue* BinaryValue::CreateWithCopiedBuffer(const char* buffer,
   return new BinaryValue(scoped_buffer_copy.Pass(), size);
 }
 
+bool BinaryValue::GetAsBinary(const BinaryValue** out_value) const {
+  if (out_value)
+    *out_value = this;
+  return true;
+}
+
 BinaryValue* BinaryValue::DeepCopy() const {
   return CreateWithCopiedBuffer(buffer_.get(), size_);
 }