Introduces snackbar enum, & other snackbar classes on android for translate

chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java

 // Copyright 2017 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.infobar;
 
 import android.support.design.widget.TabLayout;
 import android.view.LayoutInflater;
 import android.widget.LinearLayout;
 
@@ skipping 10 matching lines @@
     private long mNativeTranslateInfoBarPtr;
     private TranslateTabLayout mTabLayout;
 
     @CalledByNative
     private static InfoBar create(String sourceLanguageCode, String targetLanguageCode,
             String[] languages, String[] codes) {
         return new TranslateCompactInfoBar(
                 sourceLanguageCode, targetLanguageCode, languages, codes);
     }
 
+    @CalledByNative
+    private boolean closeInfoBar(int snackbarType, int nativePtr) {
+        // TODO(ramyasharma): Show snackbar.
+        return super.closeInfoBar();
+    }
+
     TranslateCompactInfoBar(String sourceLanguageCode, String targetLanguageCode,
             String[] languages, String[] codes) {
         super(R.drawable.infobar_translate, null, null);
         // TODO(googleo): Set correct values for the last 2.
         mOptions = TranslateOptions.create(
                 sourceLanguageCode, targetLanguageCode, languages, codes, false, false);
     }
 
     @Override
     protected boolean usesCompactLayout() {
@@ skipping 50 matching lines @@
     public void onTabUnselected(TabLayout.Tab tab) {}
 
     @Override
     public void onTabReselected(TabLayout.Tab tab) {}
 
     private native void nativeApplyStringTranslateOption(
             long nativeTranslateCompactInfoBar, int option, String value);
     private native void nativeApplyBoolTranslateOption(
             long nativeTranslateCompactInfoBar, int option, boolean value);
 }