Make class lookup lazy in jni_generator when using lazy method lookup.

base/android/jni_utils.h

+// 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.
+
+#ifndef BASE_ANDROID_JNI_UTILS_H_
+#define BASE_ANDROID_JNI_UTILS_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+
+namespace base {
+
+namespace android {
+
+// Gets a ClassLoader instance capable of loading Chromium java classes.
+ScopedJavaLocalRef<jobject> GetClassLoader(JNIEnv* env);
+
+bool RegisterJNIUtils(JNIEnv* env);
+
+}  // namespace android
+}  // namespace base
+
+#endif  // BASE_ANDROID_JNI_UTILS_H_
+