Remove env() getter from JavaRef<>

content/browser/renderer_host/java/java_bound_object.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BOUND_OBJECT_H_
 #define CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BOUND_OBJECT_H_
 
 #include <jni.h>
 #include <map>
 #include <string>
@@ skipping 26 matching lines @@
   // Methods to implement the NPObject callbacks.
   bool HasMethod(const std::string& name) const;
   bool Invoke(const std::string& name, const NPVariant* args, size_t arg_count,
               NPVariant* result);
 
  private:
   explicit JavaBoundObject(const base::android::JavaRef<jobject>& object);
 
   void EnsureMethodsAreSetUp() const;
 
-  // Global ref to the underlying Java object. We use a naked jobject, rather
-  // than a ScopedJavaGlobalRef, as the global ref will be added and dropped on
-  // different threads.
-  jobject java_object_;
+  // The global ref to the underlying Java object that this JavaBoundObject
+  // instance represents.
+  base::android::ScopedJavaGlobalRef<jobject> java_object_;
 
   // Map of public methods, from method name to Method instance. Multiple
   // entries will be present for overloaded methods. Note that we can't use
   // scoped_ptr in STL containers as we can't copy it.
   typedef std::multimap<std::string, linked_ptr<JavaMethod> > JavaMethodMap;
   mutable JavaMethodMap methods_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JavaBoundObject);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BOUND_OBJECT_H_