Revert 146065 - Remove app shortcuts when app is uninstalled on Linux.

chrome/browser/extensions/app_shortcut_manager.cc

Index: chrome/browser/extensions/app_shortcut_manager.cc
===================================================================
--- chrome/browser/extensions/app_shortcut_manager.cc	(revision 146065)
+++ chrome/browser/extensions/app_shortcut_manager.cc	(working copy)
@@ -36,8 +36,6 @@
       tracker_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_INSTALLED,
                  content::Source<Profile>(profile_));
-  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNINSTALLED,
-                 content::Source<Profile>(profile_));
 }
 
 void AppShortcutManager::OnImageLoaded(const gfx::Image& image,
@@ -63,28 +61,15 @@
 void AppShortcutManager::Observe(int type,
                                  const content::NotificationSource& source,
                                  const content::NotificationDetails& details) {
-#if !defined(OS_MACOSX)
-  switch (type) {
-    case chrome::NOTIFICATION_EXTENSION_INSTALLED: {
-      const Extension* extension = content::Details<const Extension>(
-          details).ptr();
-      if (!disable_shortcut_creation_for_tests &&
-          extension->is_platform_app() &&
-          extension->location() != Extension::LOAD) {
-        InstallApplicationShortcuts(extension);
-      }
-      break;
-    }
-    case chrome::NOTIFICATION_EXTENSION_UNINSTALLED: {
-      std::string extension_id = *content::Details<std::string>(details).ptr();
-      if (!disable_shortcut_creation_for_tests)
-        web_app::DeleteAllShortcuts(profile_->GetPath(), extension_id);
-      break;
-    }
-    default:
-      NOTREACHED();
-  }
-#endif
+  DCHECK(type == chrome::NOTIFICATION_EXTENSION_INSTALLED);
+  #if !defined(OS_MACOSX)
+    const Extension* extension = content::Details<const Extension>(
+        details).ptr();
+    if (!disable_shortcut_creation_for_tests &&
+        extension->is_platform_app() &&
+        extension->location() != Extension::LOAD)
+      InstallApplicationShortcuts(extension);
+  #endif
 }
 
 // static