🍝🏠 Refactor MostVisited UI management, extract it for reuse in Home.

chrome/android/javatests/src/org/chromium/chrome/browser/ntp/NewTabPageTest.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.graphics.Canvas;
 import android.support.test.filters.LargeTest;
 import android.support.test.filters.MediumTest;
 import android.support.test.filters.SmallTest;
 import android.test.UiThreadTest;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.DisableIf;
 import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.UrlConstants;
 import org.chromium.chrome.browser.ntp.cards.NewTabPageRecyclerView;
 import org.chromium.chrome.browser.omnibox.LocationBarLayout;
 import org.chromium.chrome.browser.omnibox.UrlBar;
+import org.chromium.chrome.browser.suggestions.TileGroupDelegateImpl;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.test.ChromeTabbedActivityTestBase;
 import org.chromium.chrome.test.util.ChromeTabUtils;
 import org.chromium.chrome.test.util.NewTabPageTestUtils;
 import org.chromium.chrome.test.util.OmniboxTestUtils;
 import org.chromium.chrome.test.util.RenderUtils.ViewRenderer;
 import org.chromium.content.browser.test.util.Criteria;
 import org.chromium.content.browser.test.util.CriteriaHelper;
 import org.chromium.content.browser.test.util.KeyUtils;
@@ skipping 54 matching lines @@
                     // Create FakeMostVisitedSites after starting the activity, since it depends on
                     // native code.
                     mFakeMostVisitedSites = new FakeMostVisitedSites(mTab.getProfile(),
                             FAKE_MOST_VISITED_TITLES, mFakeMostVisitedUrls,
                             FAKE_MOST_VISITED_WHITELIST_ICON_PATHS, FAKE_MOST_VISITED_SOURCES);
                 }
             });
         } catch (Throwable t) {
             fail(t.getMessage());
         }
-        NewTabPage.setMostVisitedSitesForTests(mFakeMostVisitedSites);
+        TileGroupDelegateImpl.setMostVisitedSitesForTests(mFakeMostVisitedSites);
 
         loadUrl(UrlConstants.NTP_URL);
         NewTabPageTestUtils.waitForNtpLoaded(mTab);
 
         assertTrue(mTab.getNativePage() instanceof NewTabPage);
         mNtp = (NewTabPage) mTab.getNativePage();
         mFakebox = mNtp.getView().findViewById(R.id.search_box);
         mMostVisitedLayout = (ViewGroup) mNtp.getView().findViewById(R.id.most_visited_layout);
         assertEquals(mFakeMostVisitedUrls.length, mMostVisitedLayout.getChildCount());
     }
@@ skipping 300 matching lines @@
 
     private void waitForTabLoading() {
         CriteriaHelper.pollUiThread(new Criteria() {
             @Override
             public boolean isSatisfied() {
                 return mTab.isLoading();
             }
         });
     }
 
-    private void waitForFakeboxFocusAnimationComplete(NewTabPage ntp) throws InterruptedException {
+    private void waitForFakeboxFocusAnimationComplete(NewTabPage ntp) {
         waitForUrlFocusPercent(ntp, 1f);
     }
 
     private void waitForUrlFocusPercent(final NewTabPage ntp, float percent) {
         CriteriaHelper.pollUiThread(Criteria.equals(percent, new Callable<Float>() {
             @Override
             public Float call() {
                 return ntp.getNewTabPageView().getUrlFocusChangeAnimationPercent();
             }
         }));
@@ skipping 24 matching lines @@
      */
     private void waitForFakeboxTopPosition(final NewTabPage ntp, int position) {
         CriteriaHelper.pollUiThread(Criteria.equals(position, new Callable<Integer>() {
             @Override
             public Integer call() {
                 return getFakeboxTop(ntp);
             }
         }));
     }
 }