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

chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateSnackbarController.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 org.chromium.chrome.browser.snackbar.SnackbarManager.SnackbarController;
+
+/**
+ * The controller for translate UI snackbars.
+ */
+class TranslateSnackbarController implements SnackbarController {
+    @Override
+    public void onDismissNoAction(Object actionData) {
+        // No action.
+    }
+
+    @Override
+    public void onAction(Object actionData) {
+        nativeToggleTranslateOption(((Integer) actionData).intValue());
+    }
+
+    private static native void nativeToggleTranslateOption(int type);
+};