Shows snackbar in translate infobar, after certain user actions.

chrome/android/java/src/org/chromium/chrome/browser/snackbar/Snackbar.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.snackbar;
 
 import android.graphics.Bitmap;
 
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.browser.snackbar.SnackbarManager.SnackbarController;
@@ skipping 15 matching lines @@
     public static final int TYPE_ACTION = 0;
 
     /**
      * Snackbars that are for notification purposes. These snackbars are stored in a queue and thus
      * are of lower priority, compared to {@link #TYPE_ACTION}. Notification snackbars are dismissed
      * one by one.
      */
     public static final int TYPE_NOTIFICATION = 1;
 
     /**
      * UMA Identifiers of features using snackbar. See SnackbarIdentifier enum in histograms.

[gone, 2017/04/26 17:27:02]

The comment here says you need to edit histograms.xml.

[ramyasharma, 2017/04/27 08:03:11]

Oops. Thanks for pointing that. Done.

      */
     public static final int UMA_TEST_SNACKBAR = -2;
     public static final int UMA_UNKNOWN = -1;
     public static final int UMA_BOOKMARK_ADDED = 0;
     public static final int UMA_BOOKMARK_DELETE_UNDO = 1;
     public static final int UMA_NTP_MOST_VISITED_DELETE_UNDO = 2;
     public static final int UMA_OFFLINE_PAGE_RELOAD = 3;
     public static final int UMA_AUTO_LOGIN = 4;
     public static final int UMA_OMNIBOX_GEOLOCATION = 5;
     public static final int UMA_LOFI = 6;
     public static final int UMA_DATA_USE_STARTED = 7;
     public static final int UMA_DATA_USE_ENDED = 8;
     public static final int UMA_DOWNLOAD_SUCCEEDED = 9;
     public static final int UMA_DOWNLOAD_FAILED = 10;
     public static final int UMA_TAB_CLOSE_UNDO = 11;
     public static final int UMA_TAB_CLOSE_ALL_UNDO = 12;
     public static final int UMA_DOWNLOAD_DELETE_UNDO = 13;
     public static final int UMA_SPECIAL_LOCALE = 14;
     // Obsolete; don't use: UMA_BLIMP = 15;
     public static final int UMA_DATA_REDUCTION_PROMO = 16;
     public static final int UMA_HISTORY_LINK_COPIED = 17;
+    public static final int UMA_TRANSLATE_ALWAYS = 18;
+    public static final int UMA_TRANSLATE_NEVER = 19;
+    public static final int UMA_TRANSLATE_NEVER_SITE = 20;
 
     private SnackbarController mController;
     private CharSequence mText;
     private String mTemplateText;
     private String mActionText;
     private Object mActionData;
     private int mBackgroundColor;
     private boolean mSingleLine = true;
     private int mDurationMs;
     private Bitmap mProfileImage;
@@ skipping 129 matching lines @@
         return mProfileImage;
     }
 
     /**
      * @return Whether the snackbar is of {@link #TYPE_ACTION}.
      */
     boolean isTypeAction() {
         return mType == TYPE_ACTION;
     }
 }