Prompt for unmasking Wallet credit card on Android

ui/android/java/res/layout/autofill_card_unmask_prompt.xml

Index: ui/android/java/res/layout/autofill_card_unmask_prompt.xml
diff --git a/ui/android/java/res/layout/autofill_card_unmask_prompt.xml b/ui/android/java/res/layout/autofill_card_unmask_prompt.xml
new file mode 100644
index 0000000000000000000000000000000000000000..42a16fa194617d05103ee5d4853265470351fae9
--- /dev/null
+++ b/ui/android/java/res/layout/autofill_card_unmask_prompt.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2014 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 xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/card_unmask_prompt_content_text"
+        android:textSize="20sp"
+        android:paddingStart="5dp"
+        android:paddingEnd="5dp"
+        android:paddingBottom="5dp"
+        android:paddingTop="5dp"
+        android:gravity="start"
+        />
+
+    <!-- TODO(estade): make this a NumberPicker? -->

[Ted C, 2014/12/10 22:04:59]

I would remove this TODO as I don't think you'll ever want it to be.

[Evan Stade, 2014/12/10 23:46:20]

Done.

+    <EditText
+        android:id="@+id/card_unmask_input"
+        android:inputType="number"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginEnd="16dp"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        android:hint="@string/card_unmask_input_hint"
+        />
+
+</LinearLayout>