Rename jni_helper.h to jni_weak_ref.h.

base/android/jni_helper.h

 // 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.
 
-#ifndef BASE_ANDROID_JNI_HELPER_H_
-#define BASE_ANDROID_JNI_HELPER_H_
-
-#include <jni.h>
-
-#include "base/base_export.h"
-#include "base/android/scoped_java_ref.h"
-
-// Manages WeakGlobalRef lifecycle.
-// This class is not thread-safe w.r.t. get() and reset(). Multiple threads may
-// safely use get() concurrently, but if the user calls reset() (or of course,
-// calls the destructor) they'll need to provide their own synchronization.
-class BASE_EXPORT JavaObjectWeakGlobalRef {
- public:
-  JavaObjectWeakGlobalRef();
-  JavaObjectWeakGlobalRef(const JavaObjectWeakGlobalRef& orig);
-  JavaObjectWeakGlobalRef(JNIEnv* env, jobject obj);
-  virtual ~JavaObjectWeakGlobalRef();
-
-  void operator=(const JavaObjectWeakGlobalRef& rhs);
-
-  base::android::ScopedJavaLocalRef<jobject> get(JNIEnv* env) const;
-
-  void reset();
-
- private:
-  void Assign(const JavaObjectWeakGlobalRef& rhs);
-
-  jweak obj_;
-};
-
-// Get the real object stored in the weak reference returned as a
-// ScopedJavaLocalRef.
-BASE_EXPORT base::android::ScopedJavaLocalRef<jobject> GetRealObject(
-    JNIEnv* env, jweak obj);
-
-#endif  // BASE_ANDROID_JNI_HELPER_H_
+// This file has been renamed. Please use the new name.
+// TODO(newt): Remove this file when all users have been updated.
+#include "base/android/jni_weak_ref.h"