Adding BlimpNavigationController to Tab

blimp/client/core/android/java/src/org/chromium/blimp/core/BlimpClientContextImpl.java

 // 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.
 
 package org.chromium.blimp.core;
 
 import android.preference.PreferenceFragment;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
@@ skipping 49 matching lines @@
         assert mNativeBlimpClientContextImplAndroid != 0;
         return nativeCreateBlimpContentsJava(mNativeBlimpClientContextImplAndroid);
     }
 
     @Override
     public boolean isBlimpSupported() {
         return true;
     }
 
     @Override
-    public void attachBlimpPreferences(PreferenceFragment fragment,
-            BlimpSettingsCallbacks callbacks) {
+    public boolean isBlimpEnabled() {
+        return false;
+    }
+
+    @Override
+    public void attachBlimpPreferences(
+            PreferenceFragment fragment, BlimpSettingsCallbacks callbacks) {
         AboutBlimpPreferences.addBlimpPreferences(fragment);
         AboutBlimpPreferences.registerCallback(callbacks);
     }
 
     @Override
     public void connect() {
         assert mNativeBlimpClientContextImplAndroid != 0;
         nativeConnectFromJava(mNativeBlimpClientContextImplAndroid);
     }
 
@@ skipping 11 matching lines @@
     @CalledByNative
     private String getAssignerUrl() {
         return PreferencesUtil.getLastUsedAssigner();
     }
 
     private native BlimpContents nativeCreateBlimpContentsJava(
             long nativeBlimpClientContextImplAndroid);
 
     private native void nativeConnectFromJava(long nativeBlimpClientContextImplAndroid);
 }