arc: Support UNINSTALL_SHORTCUT

components/arc/common/app.mojom

Index: components/arc/common/app.mojom
diff --git a/components/arc/common/app.mojom b/components/arc/common/app.mojom
index c255ea8554471c7f4207d81a84abfdf2eaec8e1d..5a0b32ab18e53ae7a5e112928592a628c3b8f19e 100644
--- a/components/arc/common/app.mojom
+++ b/components/arc/common/app.mojom
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Next MinVersion: 18
+// Next MinVersion: 19
 
 module arc.mojom;
 
@@ -75,7 +75,7 @@ enum ShowPackageInfoPage {
   MANAGE_LINKS = 1,
 };
 
-// Next method ID: 16
+// Next method ID: 17
 interface AppHost {
   // Sends newly added ARC app to Chrome. This message is sent when ARC receives
   // package added notification. Multiple apps may be added in the one package.
@@ -148,6 +148,11 @@ interface AppHost {
   // Notifies that task requested orientation lock.
   [MinVersion=12] OnTaskOrientationLockRequested@12(int32 task_id,
                                                     OrientationLock lock);
+
+  // Notifies that an application shortcut needs to be deleted. Shortcut is
+  // defined by it's |intent_uri| and |package_name|.

[nasko, 2017/05/03 18:34:45]

nit: s/it's/its/

+  [MinVersion=18] OnUninstallShortcut@16(string package_name,
+                                         string intent_uri);
 };
 
 // TODO(lhchavez): Migrate all request/response messages to Mojo.