Implementing --app-launcher install/uninstall flow.

chrome/installer/setup/uninstall.cc

 // Copyright (c) 2012 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.
 //
 // This file defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include <windows.h>
 
@@ skipping 238 matching lines @@
     }
   }
 
   if (kill) {
     VLOG(1) << installer::kChromeFrameHelperExe << " hung.  Killing.";
     base::CleanupProcesses(installer::kChromeFrameHelperExe, base::TimeDelta(),
                            content::RESULT_CODE_HUNG, NULL);
   }
 }
 
-// This method deletes Chrome shortcut folder from Windows Start menu. It
-// checks system_uninstall to see if the shortcut is in all users start menu
-// or current user start menu.
-// We try to remove the standard desktop shortcut but if that fails we try
-// to remove the alternate desktop shortcut. Only one of them should be
-// present in a given install but at this point we don't know which one.
-// We remove all start screen secondary tiles by removing the folder Windows
-// uses to store this installation's tiles.
-void DeleteChromeShortcuts(const InstallerState& installer_state,
-                           const Product& product,
+// This method deletes shortcut from Windows Start menu, for the given
+// |install_level|.  Either the standard desktop shortcut or the alternate
+// desktop shortcut are present.  We don't know which one is present, so we
+// delete both.  Finally, we delete the quick lauch shortcut.
+void DeleteShortcutsCommon(ShellUtil::ShellChange install_level,
+                           BrowserDistribution* dist,
                            const string16& chrome_exe) {
-  if (!product.is_chrome()) {
-    VLOG(1) << __FUNCTION__ " called for non-CHROME distribution";
-    return;
-  }
-
-  BrowserDistribution* dist = product.distribution();
-
-  // The per-user shortcut for this user, if present on a system-level install,
-  // has already been deleted in chrome_browser_main_win.cc::DoUninstallTasks().
-  ShellUtil::ShellChange install_level = installer_state.system_install() ?
-      ShellUtil::SYSTEM_LEVEL : ShellUtil::CURRENT_USER;
-
   VLOG(1) << "Deleting Desktop shortcut.";
   if (!ShellUtil::RemoveChromeShortcut(
           ShellUtil::SHORTCUT_DESKTOP, dist, chrome_exe, install_level, NULL)) {
     LOG(WARNING) << "Failed to delete Desktop shortcut.";
   }
   // Also try to delete the alternate desktop shortcut. It is not sufficient
   // to do so upon failure of the above call as ERROR_FILE_NOT_FOUND on
   // delete is considered success.
   if (!ShellUtil::RemoveChromeShortcut(
           ShellUtil::SHORTCUT_DESKTOP, dist, chrome_exe, install_level,
           &dist->GetAlternateApplicationName())) {
     LOG(WARNING) << "Failed to delete alternate Desktop shortcut.";
   }
 
   VLOG(1) << "Deleting Quick Launch shortcut.";
   if (!ShellUtil::RemoveChromeShortcut(
           ShellUtil::SHORTCUT_QUICK_LAUNCH, dist, chrome_exe, install_level,
           NULL)) {
     LOG(WARNING) << "Failed to delete Quick Launch shortcut.";
   }
+}
+
+// This method deletes Chrome shortcut folder from Windows Start menu. It
+// checks system_uninstall to see if the shortcut is in all users start menu
+// or current user start menu.  After deleting individual shortcuts, we then
+// remove all start screen secondary tiles by removing the folder Windows
+// uses to store this installation's tiles.
+void DeleteChromeShortcuts(const InstallerState& installer_state,
+                           const Product& product,
+                           const string16& chrome_exe) {
+  if (!product.is_chrome()) {
+    VLOG(1) << __FUNCTION__ " called for non-CHROME distribution";
+    return;
+  }
+
+  // The per-user shortcut for this user, if present on a system-level install,
+  // has already been deleted in chrome_browser_main_win.cc::DoUninstallTasks().
+  ShellUtil::ShellChange install_level = installer_state.system_install() ?
+      ShellUtil::SYSTEM_LEVEL : ShellUtil::CURRENT_USER;
+
+  BrowserDistribution* dist = product.distribution();
+  DeleteShortcutsCommon(install_level, dist, chrome_exe);
 
   VLOG(1) << "Deleting Start Menu shortcuts.";
   if (!ShellUtil::RemoveChromeShortcut(
           ShellUtil::SHORTCUT_START_MENU, dist, chrome_exe, install_level,
           NULL)) {
     LOG(WARNING) << "Failed to delete Start Menu shortcuts.";
   }
 
   ShellUtil::RemoveChromeStartScreenShortcuts(product.distribution(),
                                               chrome_exe);
@@ skipping 956 matching lines @@
 
   // Try and delete the preserved local state once the post-install
   // operations are complete.
   if (!backup_state_file.empty())
     file_util::Delete(backup_state_file, false);
 
   return ret;
 }
 
 }  // namespace installer