[Android History] Add Android history manager UI and bridge

chrome/android/java/src/org/chromium/chrome/browser/widget/selection/SelectableItemViewHolder.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.widget.selection;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+
+/**
+ * An ViewHolder for a {@link SelectableItemView}.
+ * @param <E> The type of the item associated with the SelectableItemView.
+ */
+public class SelectableItemViewHolder<E> extends RecyclerView.ViewHolder {
+    private SelectableItemView<E> mItemView;
+
+    /**
+     * @param itemView The SelectableItemView to be held by this ViewHolder.
+     * @param delegate The SelectionDelegate for the itemView.
+     */
+    @SuppressWarnings("unchecked")
+    public SelectableItemViewHolder(View itemView, SelectionDelegate<E> delegate) {
+        super(itemView);
+        mItemView = (SelectableItemView<E>) itemView;
+        mItemView.setSelectionDelegate(delegate);
+    }
+
+    /**
+     * @param item The item to display in the SelectableItemView held by this ViewHolder.
+     */
+    public void displayItem(E item) {
+        mItemView.setItem(item);
+    }
+}