📰 Tweak the suggestion ranks for UMA to handle fetchMore

chrome/android/java/src/org/chromium/chrome/browser/suggestions/ContentSuggestionsActivity.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.chrome.browser.suggestions;
 
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ skipping 76 matching lines @@
         @Override
         public void navigateToBookmarks() {}
 
         @Override
         public void navigateToRecentTabs() {}
 
         @Override
         public void navigateToDownloadManager() {}
 
         @Override
-        public void trackSnippetsPageImpression(int[] categories, int[] suggestionsPerCategory) {}
-
-        @Override
-        public void trackSnippetImpression(SnippetArticle article) {}
-
-        @Override
-        public void trackSnippetMenuOpened(SnippetArticle article) {}
-
-        @Override
-        public void trackSnippetCategoryActionImpression(int category, int position) {}
-
-        @Override
-        public void trackSnippetCategoryActionClick(int category, int position) {}
-
-        @Override
-        public void openSnippet(
-                int windowOpenDisposition, SnippetArticle article, int categoryIndex) {}
+        public void openSnippet(int windowOpenDisposition, SnippetArticle article) {}
 
         @Override
         public void focusSearchBox(boolean beginVoiceSearch, String pastedText) {}
 
         @Override
         public void setMostVisitedURLsObserver(MostVisitedURLsObserver observer, int numResults) {}
 
         @Override
         public void getLocalFaviconImageForURL(
                 String url, int size, FaviconImageCallback faviconCallback) {}
@@ skipping 32 matching lines @@
 
         @Override
         public boolean isCurrentPage() {
             return true;
         }
 
         @Override
         public ContextMenuManager getContextMenuManager() {
             return mContextMenuManager;
         }
+
+        @Override
+        public SuggestionsMetricsReporter getSuggestionsMetricsReporter() {
+            return mSnippetsBridge;
+        }
     }
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         assert ChromeFeatureList.isEnabled(ChromeFeatureList.NTP_SUGGESTIONS_STANDALONE_UI);
 
         mRecyclerView = (NewTabPageRecyclerView) LayoutInflater.from(this).inflate(
                 R.layout.new_tab_page_recycler_view, null, false);
@@ skipping 15 matching lines @@
     @Override
     public void onContextMenuClosed(Menu menu) {
         mContextMenuManager.onContextMenuClosed();
     }
 
     @Override
     protected void onDestroy() {
         for (DestructionObserver observer : mDestructionObservers) {
             observer.onDestroy();
         }
+
+        mSnippetsBridge.destroy();
+        mSnippetsBridge = null;
+
         super.onDestroy();
     }
 }