JNI: allow either JavaRef or bare objects in Java calls.

base/android/jni_generator/testFromJavaPGenerics.golden

 // Copyright 2014 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
@@ skipping 12 matching lines @@
 base::subtle::AtomicWord g_HashSet_clazz __attribute__((unused)) = 0;
 #define HashSet_clazz(env) base::android::LazyGetClass(env, kHashSetClassPath, &g_HashSet_clazz)
 
 }  // namespace
 
 namespace JNI_HashSet {
 
 // Step 2: method stubs.
 
 static base::subtle::AtomicWord g_HashSet_dummy = 0;
-static void Java_HashSet_dummy(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static void Java_HashSet_dummy(JNIEnv* env, jobject obj) {
-  CHECK_CLAZZ(env, obj,
+static void Java_HashSet_dummy(JNIEnv* env, const
+    base::android::JavaRefOrBare<jobject>& obj) __attribute__ ((unused));
+static void Java_HashSet_dummy(JNIEnv* env, const
+    base::android::JavaRefOrBare<jobject>& obj) {
+  CHECK_CLAZZ(env, obj.obj(),
       HashSet_clazz(env));
   jmethodID method_id =
       base::android::MethodID::LazyGet<
       base::android::MethodID::TYPE_INSTANCE>(
       env, HashSet_clazz(env),
       "dummy",
       "()V",
       &g_HashSet_dummy);
 
-     env->CallVoidMethod(obj,
+     env->CallVoidMethod(obj.obj(),
           method_id);
   jni_generator::CheckException(env);
 
 }
 
 // Step 3: RegisterNatives.
 
 }  // namespace JNI_HashSet
 
 #endif  // java_util_HashSet_JNI