Chrome-side patch for IsAppInstalled.

content/common/installedapp/installed_app_provider.mojom

Index: content/common/installedapp/installed_app_provider.mojom
diff --git a/content/common/installedapp/installed_app_provider.mojom b/content/common/installedapp/installed_app_provider.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..9cc647c39fe8138e101fa47f57b86e90a24e739a
--- /dev/null
+++ b/content/common/installedapp/installed_app_provider.mojom
@@ -0,0 +1,11 @@
+// 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.
+
+module content;
+
+import "related_application.mojom";
+
+interface InstalledAppProvider {
+  FilterInstalledApps(array<RelatedApplication> relatedApps, string origin) => (array<RelatedApplication> installedApps);
+};