Create the base Custom Context Menu Dialog.

chrome/android/java/res/layout/multi_type_context_menu.xml

Index: chrome/android/java/res/layout/multi_type_context_menu.xml
diff --git a/chrome/android/java/res/layout/multi_type_context_menu.xml b/chrome/android/java/res/layout/multi_type_context_menu.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d6ec0773f7d4a7b8a120eb57debe5133cdc74983
--- /dev/null
+++ b/chrome/android/java/res/layout/multi_type_context_menu.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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. -->
+<LinearLayout

[David Trainor- moved to gerrit, 2017/03/21 16:30:02]

I haven't looked at the CustomContextMenuViewPager yet.  Does this View have to
be a LinearLayout (or here at all)?

[JJ, 2017/03/22 23:35:32]

Actually no. The LinearLayout was leftover I'm pretty sure from old code. It
works just as well without it.

+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="20dp"
+    android:layout_marginBottom="20dp"
+    android:minWidth="280dp"
+    android:orientation="vertical">
+    <org.chromium.chrome.browser.contextmenu.CustomContextMenuViewPager
+        android:id="@+id/custom_pager"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+        <android.support.design.widget.TabLayout
+            android:id="@+id/tab_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="@color/google_grey_100"
+            app:tabTextColor="#80000000"
+            app:tabSelectedTextColor="@color/light_active_color"
+            app:tabIndicatorColor="@color/light_active_color"
+            app:tabGravity="fill"
+            app:tabMode="fixed" />
+    </org.chromium.chrome.browser.contextmenu.CustomContextMenuViewPager>
+</LinearLayout>