Tied up BlimpNavigationController to NavigationFeature

blimp/client/core/android/blimp_contents_observer_proxy.h

 // Copyright 2016 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 BLIMP_CLIENT_CORE_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_
 #define BLIMP_CLIENT_CORE_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_
 
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
@@ skipping 10 matching lines @@
 
   BlimpContentsObserverProxy(
       JNIEnv* env,
       jobject obj,
       BlimpContentsImplAndroid* blimp_contents_impl_android);
   ~BlimpContentsObserverProxy() override;
 
   void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // BlimpContentsObserver implementation.
-  void OnURLUpdated(const GURL& url) override;
+  void OnNavigationStateChanged() override;
 
  private:
   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
 
   BlimpContentsImplAndroid* blimp_contents_impl_android_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpContentsObserverProxy);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_CORE_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_