arc: Add package app list updated event.

components/arc/common/app.mojom

 // Copyright 2015 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.
 //
-// Next MinVersion: 13
+// Next MinVersion: 14
 
 module arc.mojom;
 
 import "scale_factor.mojom";
 import "screen_rect.mojom";
 
 // Describes OrientationLock request.
 [Extensible]
 enum OrientationLock {
   NONE = 0,
@@ skipping 33 matching lines @@
 // Page for ShowPackageInfoOnPage.
 [Extensible]
 enum ShowPackageInfoPage {
   // The main package info page.
   MAIN = 0,
 
   // Page for managing links assigned to the app.
   MANAGE_LINKS = 1,
 };
 
-// Next method ID: 13
+// Next method ID: 14
 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.
-  [MinVersion=1] OnAppAdded@2(AppInfo app);
+  [MinVersion=1] OnAppAddedDeprecated@2(AppInfo app);
 
   // Receives an icon of required |scale_factor| for specific ARC app. The app
   // is defined by |package_name| and |activity|. The icon content cannot be
   // empty and must match to |scale_factor| assuming 48x48 for
   // SCALE_FACTOR_100P.  |scale_factor| is an enum defined at ui/base/layout.h.
   // |icon_png_data| is a png-encoded image.
   OnAppIcon@1(string package_name, string activity,
               ScaleFactor scale_factor, array<uint8> icon_png_data);
 
   // Receives a list of available ARC apps to Chrome. Members of AppInfo must
   // contain non-empty string.
   OnAppListRefreshed@0(array<AppInfo> apps);
 
   // Notifies that a package has been added.
   [MinVersion=8] OnPackageAdded@8(ArcPackageInfo arcPackageInfo);
 
+  // Notifies that a package list of apps has been updated.
+  [MinVersion=13] OnPackageAppListRefreshed@13(string package_name,
+                                               array<AppInfo> apps);

[xiyuan, 2016/08/09 16:51:14]

So we are tracking apps from a package in ARC side? Just wondering how we can
make this call.

[khmel, 2016/08/09 17:46:39]

Yes, we are sending this event from ARC side. Relative change is here:
https://googleplex-android-review.git.corp.google.com/#/c/1304858/1/ArcAppLau...
Most important change: line 514

+
   // Receives a list of available ARC packages to Chrome. Members of
   // PackageInfo must contain non-empty string.
   [MinVersion=8] OnPackageListRefreshed@9(array<ArcPackageInfo> packages);
 
   // Notifies that a package has been modified.
   [MinVersion=8] OnPackageModified@10(ArcPackageInfo arcPackageInfo);
 
   // Sends removed ARC package to Chrome. |package_name| must contain non-empty
   // string. This message is sent when ARC receives package removed
   // notification. Removing one package can potentially remove more than one
@@ skipping 89 matching lines @@
                                            ShowPackageInfoPage page,
                                            ScreenRect dimension_on_screen);
 
   // Sets notification setting for the package.
   [MinVersion=6] SetNotificationsEnabled@10(string package_name, bool enabled);
 
   // Sends a request to ARC to uninstall the given package.  Error (if ever
   // happens) is ignored, and uninstall option should appear in the UI.
   [MinVersion=2] UninstallPackage@5(string package_name);
 };