Create the base Custom Context Menu Dialog.

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuListAdapter.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuListAdapter.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuListAdapter.java b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuListAdapter.java
new file mode 100644
index 0000000000000000000000000000000000000000..dbe631dda10b1e9ccec1db4dbea30d13b5186ee1
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuListAdapter.java
@@ -0,0 +1,83 @@
+// 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.contextmenu;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import org.chromium.chrome.R;
+
+import java.util.List;
+
+/**
+ * Takes a list of {@link ContextMenuItem} and puts them in an adapter meant to be used within a
+ * list view.
+ */
+class TabularContextMenuListAdapter extends BaseAdapter {
+    private final List<ContextMenuItem> mMenuItems;
+    private final Context mContext;
+
+    /**
+     * Adapter for the tabular context menu UI
+     * @param menuItems The list of items to display in the view.
+     * @param context Used to inflate the layout.
+     */
+    TabularContextMenuListAdapter(List<ContextMenuItem> menuItems, Context context) {
+        mMenuItems = menuItems;
+        mContext = context;
+    }
+
+    @Override
+    public int getCount() {
+        return mMenuItems.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mMenuItems.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return mMenuItems.get(position).menuId;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ContextMenuItem menuItem = mMenuItems.get(position);
+        ViewHolderItem viewHolder;
+
+        if (convertView == null) {
+            LayoutInflater inflater = LayoutInflater.from(mContext);
+            convertView = inflater.inflate(R.layout.tabular_context_menu_row, null);
+
+            viewHolder = new ViewHolderItem();
+            viewHolder.mIcon = (ImageView) convertView.findViewById(R.id.context_menu_icon);
+            viewHolder.mText = (TextView) convertView.findViewById(R.id.context_text);
+
+            convertView.setTag(viewHolder);
+        } else {
+            viewHolder = (ViewHolderItem) convertView.getTag();
+        }
+
+        viewHolder.mText.setText(menuItem.getString(mContext));
+        Drawable icon = menuItem.getDrawableAndDescription(mContext);
+        viewHolder.mIcon.setImageDrawable(icon);
+        viewHolder.mIcon.setVisibility(icon != null ? View.VISIBLE : View.INVISIBLE);
+
+        return convertView;
+    }
+
+    private static class ViewHolderItem {
+        ImageView mIcon;
+        TextView mText;
+    }
+}