arc: Open launcher after installing app from Android

chrome/browser/ui/app_list/arc/arc_app_list_prefs.h

Index: chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
diff --git a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
index cff36005e483dd28d82ea613239945ea2ecc0751..7746d0a82f095bdd135e7c37512423996cb7bf63 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
+++ b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
@@ -218,6 +218,9 @@ class ArcAppListPrefs
     return app_instance_holder_;
   }
 
+  std::unordered_set<std::string> GetAppsForPackage(
+      const std::string& package_name) const;
+
  private:
   friend class ChromeLauncherControllerImplTest;
 
@@ -289,8 +292,6 @@ class ArcAppListPrefs
   void OnIconInstalled(const std::string& app_id,
                        ui::ScaleFactor scale_factor,
                        bool install_succeed);
-  std::unordered_set<std::string> GetAppsForPackage(
-      const std::string& package_name) const;
 
   // This checks if app is not registered yet and in this case creates
   // non-launchable app entry.
@@ -298,6 +299,12 @@ class ArcAppListPrefs
                               const std::string& package_name,
                               const std::string& activity);
 
+  // Reveals first app from provided package in app launcher if package is newly
+  // installed by user. If all apps in package are hidden then app list is not
+  // shown.
+  void MayShowPackageInAppLauncher(

[xiyuan, 2016/08/23 17:54:17]

nit: MayShowPackageInAppLauncher -> May*be*ShowPackageInAppLauncher to be
consistent with other code, e.g. [1]

[1]
https://cs.chromium.org/chromium/src/chrome/browser/ui/browser_window.h?rcl=0...

[khmel, 2016/08/23 18:03:12]

Done.

+      const arc::mojom::ArcPackageInfo& package_info);
+
   Profile* const profile_;
 
   // Owned by the BrowserContext.