[WebApk] Update verification keys.

chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHostSignature.template

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHostSignature.template
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHostSignature.template b/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHostSignature.template
new file mode 100644
index 0000000000000000000000000000000000000000..a0599feb36e219326b2288f8aecc4b07c6ea7120
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHostSignature.template
@@ -0,0 +1,13 @@
+// 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.webapps;
+
+abstract class ChromeWebApkHostSignature {
+
+    // The public key to verify whether a WebAPK is signed by WebAPK Minting
+    // Server.
+    #include "chrome/android/webapk/channel_keys.h"
+    static final byte[] EXPECTED_SIGNATURE = new byte[] { SIGNATURE };
+}