C++ bindings: A struct's Deserialize() now does validation before deserializing.

examples/serialization/main.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This example demonstrates how you can serialize and deserialize a generated
 // mojom into and out of a buffer.
 
 #include "examples/serialization/serialization.mojom.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "mojo/public/cpp/environment/logging.h"
 
 int main() {
   examples::MyStruct in;
   examples::MyStruct out;
 
   in.a = 1;
   in.b = 2.0f;
   in.c = "hello world!";
 
   char buf[1000];
   MOJO_CHECK(in.Serialize(buf, sizeof(buf)));
-
-  out.Deserialize(buf);
+  MOJO_CHECK(out.Deserialize(buf, sizeof(buf)));
   MOJO_CHECK(out.a == 1);
   MOJO_CHECK(out.b == 2.0f);
   MOJO_CHECK(out.c == "hello world!");
 
   return 0;
 }