Catch intptr_t to int conversion on 64-bit platforms.

base/android/jni_generator/testFromJavaPGenerics.golden

 // Copyright (c) 2012 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 file is autogenerated by
 //     base/android/jni_generator/jni_generator.py
 // For
 //     java/util/HashSet
 
 #ifndef java_util_HashSet_JNI
 #define java_util_HashSet_JNI
 
 #include <jni.h>
 
 #include "base/android/jni_generator/jni_generator_helper.h"
 
+#include "base/android/jni_int_wrapper.h"
+
 // Step 1: forward declarations.
 namespace {
 const char kHashSetClassPath[] = "java/util/HashSet";
 // Leaking this jclass as we cannot use LazyInstance from some threads.
 jclass g_HashSet_clazz = NULL;
 
 }  // namespace
 
 namespace JNI_HashSet {
 
@@ skipping 25 matching lines @@
 static bool RegisterNativesImpl(JNIEnv* env) {
   g_HashSet_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
       base::android::GetClass(env, kHashSetClassPath).obj()));
 
   return true;
 }
 
 }  // namespace JNI_HashSet
 
 #endif  // java_util_HashSet_JNI