Add VrShell feature flag and wire it up to VrShell delegate.

chrome/browser/android/chrome_feature_list.cc

 // Copyright 2015 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 "chrome/browser/android/chrome_feature_list.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 17 matching lines @@
 namespace {
 
 // Array of features exposed through the Java ChromeFeatureList API. Entries in
 // this array may either refer to features defined in the header of this file or
 // in other locations in the code base (e.g. chrome/, components/, etc).
 const base::Feature* kFeaturesExposedToJava[] = {
     &autofill::kAutofillScanCardholderName,
     &features::kAutoplayMutedVideos,
     &features::kCredentialManagementAPI,
     &features::kSimplifiedFullscreenUI,
+    &features::kVrShell,
     &features::kWebPayments,
     &kAndroidPayIntegrationV1,
     &kCCTExternalLinkHandling,
     &kChromeHomeFeature,
     &kContextualSearchSingleActions,
     &kDownloadsUiFeature,
     &kImportantSitesInCBD,
     &kNoCreditCardAbort,
     &kNTPFakeOmniboxTextFeature,
     &kNTPOfflinePagesFeature,
@@ skipping 78 matching lines @@
   NOTREACHED();
   return false;
 }
 
 bool RegisterChromeFeatureListJni(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android
 }  // namespace chrome