Remove pinned Crostini apps on uninstall

This CL adds a LauncherCrostiniAppUpdater that ensures the Shelf knows
about app uninstallation so it can remove pinned Crostini apps.

TEST=Manually uninstalled an app and saw the pin disappear. Manually
uninstalled Crostini and saw pins disappear.

Bug: 839699
Change-Id: I81e6b60414ad8766ef159a9ea3969809beb5112c
Reviewed-on: https://chromium-review.googlesource.com/1046605Reviewed-by: Stefan Kuhne <skuhne@chromium.org>
Commit-Queue: Timothy Loh <timloh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558175}

chrome/browser/ui/BUILD.gn

@@ -3686,6 +3686,8 @@ split_static_library("ui") {
         "ash/launcher/internal_app_window_shelf_controller.h",
         "ash/launcher/launcher_arc_app_updater.cc",
         "ash/launcher/launcher_arc_app_updater.h",
+        "ash/launcher/launcher_crostini_app_updater.cc",
+        "ash/launcher/launcher_crostini_app_updater.h",
         "views/arc_app_dialog_view.cc",
       ]
       deps += [ "//mash/common" ]

chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc

@@ -49,6 +49,7 @@
 #include "chrome/browser/ui/ash/launcher/internal_app_window_shelf_controller.h"
 #include "chrome/browser/ui/ash/launcher/launcher_arc_app_updater.h"
 #include "chrome/browser/ui/ash/launcher/launcher_controller_helper.h"
+#include "chrome/browser/ui/ash/launcher/launcher_crostini_app_updater.h"
 #include "chrome/browser/ui/ash/launcher/launcher_extension_app_updater.h"
 #include "chrome/browser/ui/ash/launcher/multi_profile_app_window_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/multi_profile_browser_status_monitor.h"
@@ -1180,6 +1181,12 @@ void ChromeLauncherController::AttachProfile(Profile* profile_to_attach) {
     app_updaters_.push_back(std::move(arc_app_updater));
   }
 
+  if (IsCrostiniUIAllowedForProfile(profile())) {
+    std::unique_ptr<LauncherAppUpdater> crostini_app_updater(
+        new LauncherCrostiniAppUpdater(this, profile()));
+    app_updaters_.push_back(std::move(crostini_app_updater));
+  }
+
   app_list::AppListSyncableService* app_service =
       app_list::AppListSyncableServiceFactory::GetForProfile(profile());
   if (app_service)

chrome/browser/ui/ash/launcher/launcher_crostini_app_updater.cc

+// Copyright 2018 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.
+
+#include "chrome/browser/ui/ash/launcher/launcher_crostini_app_updater.h"
+
+#include "chrome/browser/chromeos/crostini/crostini_registry_service_factory.h"
+#include "chrome/browser/profiles/profile.h"
+
+LauncherCrostiniAppUpdater::LauncherCrostiniAppUpdater(
+    Delegate* delegate,
+    content::BrowserContext* browser_context)
+    : LauncherAppUpdater(delegate, browser_context) {
+  crostini::CrostiniRegistryService* registry_service =
+      crostini::CrostiniRegistryServiceFactory::GetForProfile(
+          Profile::FromBrowserContext(browser_context));
+  registry_service->AddObserver(this);
+}
+
+LauncherCrostiniAppUpdater::~LauncherCrostiniAppUpdater() {
+  crostini::CrostiniRegistryService* registry_service =
+      crostini::CrostiniRegistryServiceFactory::GetForProfile(
+          Profile::FromBrowserContext(browser_context()));
+  registry_service->RemoveObserver(this);
+}
+
+void LauncherCrostiniAppUpdater::OnRegistryUpdated(
+    crostini::CrostiniRegistryService* registry_service,
+    const std::vector<std::string>& updated_apps,
+    const std::vector<std::string>& removed_apps,
+    const std::vector<std::string>& inserted_apps) {
+  for (const std::string& app_id : updated_apps)
+    delegate()->OnAppUpdated(browser_context(), app_id);
+  for (const std::string& app_id : removed_apps) {
+    delegate()->OnAppUninstalledPrepared(browser_context(), app_id);
+    delegate()->OnAppUninstalled(browser_context(), app_id);
+  }
+  for (const std::string& app_id : inserted_apps)
+    delegate()->OnAppInstalled(browser_context(), app_id);
+}

chrome/browser/ui/ash/launcher/launcher_crostini_app_updater.h

+// Copyright 2018 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.
+
+#ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_CROSTINI_APP_UPDATER_H_
+#define CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_CROSTINI_APP_UPDATER_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "chrome/browser/chromeos/crostini/crostini_registry_service.h"
+#include "chrome/browser/ui/ash/launcher/launcher_app_updater.h"
+
+class LauncherCrostiniAppUpdater
+    : public LauncherAppUpdater,
+      public crostini::CrostiniRegistryService::Observer {
+ public:
+  LauncherCrostiniAppUpdater(Delegate* delegate,
+                             content::BrowserContext* browser_context);
+  ~LauncherCrostiniAppUpdater() override;
+
+  // crostini::CrostiniRegistryService::Observer:
+  void OnRegistryUpdated(
+      crostini::CrostiniRegistryService* registry_service,
+      const std::vector<std::string>& updated_apps,
+      const std::vector<std::string>& removed_apps,
+      const std::vector<std::string>& inserted_apps) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LauncherCrostiniAppUpdater);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_CROSTINI_APP_UPDATER_H_