Launch WebAPK if notification opens URL within WebAPK scope

chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/NavigationClient.java

Index: chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/NavigationClient.java
diff --git a/chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/NavigationClient.java b/chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/NavigationClient.java
new file mode 100644
index 0000000000000000000000000000000000000000..734bbe172c1432ca14b1d4501f8b380c373d330f
--- /dev/null
+++ b/chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/NavigationClient.java
@@ -0,0 +1,32 @@
+// 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.webapk.lib.client;
+
+import android.content.Context;
+import android.content.Intent;
+
+/**
+ * NavigationClient provides an API to launch a WebAPK.
+ */
+public class NavigationClient {
+    /**
+     * Launches a WebAPK.
+     * @param context Application context.
+     * @param webApkPackageName Package name of the WebAPK to launch.
+     * @param url URL to navigate WebAPK to.
+     */
+    public static void launchWebApk(Context context, String webApkPackageName, String url) {
+        Intent intent;
+        try {
+            intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
+        } catch (Exception e) {
+            return;
+        }
+
+        intent.setPackage(webApkPackageName);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        context.startActivity(intent);
+    }
+}