📰 Tweak the suggestion ranks for UMA to handle fetchMore

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.Configuration;
 import android.content.res.Resources;
@@ skipping 41 matching lines @@
 import org.chromium.chrome.browser.ntp.NewTabPage.OnSearchBoxScrollListener;
 import org.chromium.chrome.browser.ntp.cards.CardsVariationParameters;
 import org.chromium.chrome.browser.ntp.cards.NewTabPageAdapter;
 import org.chromium.chrome.browser.ntp.cards.NewTabPageRecyclerView;
 import org.chromium.chrome.browser.ntp.snippets.SnippetArticle;
 import org.chromium.chrome.browser.ntp.snippets.SnippetsConfig;
 import org.chromium.chrome.browser.ntp.snippets.SuggestionsSource;
 import org.chromium.chrome.browser.offlinepages.OfflinePageBridge;
 import org.chromium.chrome.browser.profiles.MostVisitedSites.MostVisitedURLsObserver;
 import org.chromium.chrome.browser.profiles.Profile;
+import org.chromium.chrome.browser.suggestions.SuggestionsMetricsReporter;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.util.MathUtils;
 import org.chromium.chrome.browser.util.ViewUtils;
 import org.chromium.chrome.browser.widget.RoundedIconGenerator;
 import org.chromium.ui.base.DeviceFormFactor;
 
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 
@@ skipping 85 matching lines @@
         /** Opens the bookmarks page in the current tab. */
         void navigateToBookmarks();
 
         /** Opens the recent tabs page in the current tab. */
         void navigateToRecentTabs();
 
         /** Opens the Download Manager UI in the current tab. */
         void navigateToDownloadManager();
 
         /**
-         * Tracks per-page-load metrics for content suggestions.
-         * @param categories The categories of content suggestions.
-         * @param suggestionsPerCategory The number of content suggestions in each category.
-         */
-        void trackSnippetsPageImpression(int[] categories, int[] suggestionsPerCategory);
-
-        /**
-         * Tracks impression metrics for a content suggestion.
-         * @param article The content suggestion that was shown to the user.
-         */
-        void trackSnippetImpression(SnippetArticle article);
-
-        /**
-         * Tracks impression metrics for the long-press menu for a content suggestion.
-         * @param article The content suggestion for which the long-press menu was opened.
-         */
-        void trackSnippetMenuOpened(SnippetArticle article);
-
-        /**
-         * Tracks impression metrics for a category's action button ("More").
-         * @param category The category for which the action button was shown.
-         * @param position The position of the action button within the category.
-         */
-        void trackSnippetCategoryActionImpression(int category, int position);
-
-        /**
-         * Tracks click metrics for a category's action button ("More").
-         * @param category The category for which the action button was clicked.
-         * @param position The position of the action button within the category.
-         */
-        void trackSnippetCategoryActionClick(int category, int position);
-
-        /**
          * Opens a content suggestion and records related metrics.
          * @param windowOpenDisposition How to open (current tab, new tab, new window etc).
          * @param article The content suggestion to open.
-         * @param categoryIndex The index of the category |article| belongs to.
          */
-        void openSnippet(int windowOpenDisposition, SnippetArticle article, int categoryIndex);
+        void openSnippet(int windowOpenDisposition, SnippetArticle article);
 
         /**
          * Animates the search box up into the omnibox and bring up the keyboard.
          * @param beginVoiceSearch Whether to begin a voice search.
          * @param pastedText Text to paste in the omnibox after it's been focused. May be null.
          */
         void focusSearchBox(boolean beginVoiceSearch, String pastedText);
 
         /**
          * Gets the list of most visited sites.
@@ skipping 78 matching lines @@
          * displayed to the user.
          */
         boolean isCurrentPage();
 
         /**
          * @return The context menu manager. Will be {@code null} if the {@link NewTabPageView} is
          * not done initialising.
          */
         @Nullable
         ContextMenuManager getContextMenuManager();
+
+        /**
+         * @return The suggestion metrics reporter. Will be {@code null} if the
+         * {@link NewTabPageView} is not done initialising.
+         */
+        @Nullable
+        SuggestionsMetricsReporter getSuggestionsMetricsReporter();
     }
 
     /**
      * Default constructor required for XML inflation.
      */
     public NewTabPageView(Context context, AttributeSet attrs) {
         super(context, attrs);
     }
 
     /**
@@ skipping 931 matching lines @@
     public int getScrollPosition() {
         if (mUseCardsUi) return mRecyclerView.getScrollPosition();
         return RecyclerView.NO_POSITION;
     }
 
     /** @return the context menu manager. */
     public ContextMenuManager getContextMenuManager() {
         return mContextMenuManager;
     }
 }