[NTP Snippets] Make a base::Feature instead of raw cmdline flag

chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java

 // 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.
 
 package org.chromium.chrome.browser.ntp;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
@@ skipping 16 matching lines @@
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnLayoutChangeListener;
 import android.view.ViewGroup;
 import android.view.ViewStub;
 import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.TextView;
 
-import org.chromium.base.CommandLine;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ChromeSwitches;
+import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.favicon.FaviconHelper.FaviconImageCallback;
 import org.chromium.chrome.browser.favicon.FaviconHelper.IconAvailabilityCallback;
 import org.chromium.chrome.browser.favicon.LargeIconBridge.LargeIconCallback;
 import org.chromium.chrome.browser.ntp.LogoBridge.Logo;
 import org.chromium.chrome.browser.ntp.LogoBridge.LogoObserver;
 import org.chromium.chrome.browser.ntp.MostVisitedItem.MostVisitedItemManager;
 import org.chromium.chrome.browser.ntp.NewTabPage.OnSearchBoxScrollListener;
 import org.chromium.chrome.browser.ntp.snippets.SnippetsManager;
 import org.chromium.chrome.browser.preferences.DocumentModeManager;
 import org.chromium.chrome.browser.profiles.MostVisitedSites.MostVisitedURLsObserver;
@@ skipping 273 matching lines @@
         addOnLayoutChangeListener(this);
         setSearchProviderHasLogo(searchProviderHasLogo);
 
         mPendingLoadTasks++;
         mManager.setMostVisitedURLsObserver(this,
                 mMostVisitedDesign.getNumberOfTiles(searchProviderHasLogo));
 
         if (mManager.shouldShowOptOutPromo()) showOptOutPromo();
 
         // Set up snippets
-        if (CommandLine.getInstance().hasSwitch(ChromeSwitches.ENABLE_NTP_SNIPPETS)) {
+        if (ChromeFeatureList.isEnabled(ChromeFeatureList.NTP_SNIPPETS)) {
             mSnippetsView = (RecyclerView) findViewById(R.id.snippets_card_list);
             mSnippetsView.setVisibility(View.VISIBLE);
             RecordHistogram.recordEnumeratedHistogram(SnippetsManager.SNIPPETS_STATE_HISTOGRAM,
                     SnippetsManager.SNIPPETS_SHOWN, SnippetsManager.NUM_SNIPPETS_ACTIONS);
             mSnippetsView.setLayoutManager(new LinearLayoutManager(getContext()));
             mSnippetsView.addOnScrollListener(new RecyclerView.OnScrollListener() {
                 private boolean mScrolledOnce = false;
                 @Override
                 public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                     if (newState != RecyclerView.SCROLL_STATE_DRAGGING) return;
@@ skipping 636 matching lines @@
             for (MostVisitedItem item : mMostVisitedItems) {
                 if (item.getUrl().equals(url)) {
                     LargeIconCallback iconCallback = new LargeIconCallbackImpl(item, false);
                     mManager.getLargeIconForUrl(url, mMinIconSize, iconCallback);
                     break;
                 }
             }
         }
     }
 }