Tied up BlimpNavigationController to NavigationFeature

blimp/client/core/android/blimp_contents_observer_proxy.cc

 // 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.
 
 #include "blimp/client/core/android/blimp_contents_observer_proxy.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "blimp/client/core/android/blimp_contents_impl_android.h"
@@ skipping 29 matching lines @@
 
 BlimpContentsObserverProxy::~BlimpContentsObserverProxy() {}
 
 void BlimpContentsObserverProxy::Destroy(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jobj) {
   blimp_contents_impl_android_->blimp_contents_impl()->RemoveObserver(this);
   delete this;
 }
 
-void BlimpContentsObserverProxy::OnURLUpdated(const GURL& url) {
+void BlimpContentsObserverProxy::OnNavigationStateChanged() {
   JNIEnv* env = base::android::AttachCurrentThread();
-  base::android::ScopedJavaLocalRef<jobject> obj(java_obj_);
-  base::android::ScopedJavaLocalRef<jstring> jstring_url(
-      base::android::ConvertUTF8ToJavaString(env, url.spec()));
-
-  Java_BlimpContentsObserverProxy_onUrlUpdated(env, obj.obj(),
-                                               jstring_url.obj());
+  Java_BlimpContentsObserverProxy_onNavigationStateChanged(env,
+                                                           java_obj_.obj());
 }
 
 }  // namespace client
 }  // namespace blimp