Avoid clobbering the app list pinned taskbar shortcut on startup (for now).

chrome/browser/shell_integration_win.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.
 
 #include "chrome/browser/shell_integration_win.h"
 
 #include <windows.h>
 #include <shlwapi.h>
 #include <shobjidl.h>
 #include <propkey.h>  // Needs to come after shobjidl.h.
@@ skipping 77 matching lines @@
   for (size_t i = 0; i < basenames.length(); ++i) {
     if (base::IsAsciiAlpha(basenames[i]) ||
         base::IsAsciiDigit(basenames[i]) ||
         basenames[i] == L'.')
       profile_id += basenames[i];
   }
 
   return profile_id;
 }
 
+base::string16 GetAppListAppName() {
+  static const base::char16 kAppListAppNameSuffix[] = L"AppList";
+  BrowserDistribution* dist = BrowserDistribution::GetDistribution();
+  base::string16 app_name(dist->GetBaseAppId());
+  app_name.append(kAppListAppNameSuffix);
+  return app_name;
+}
+
 // Gets expected app id for given Chrome (based on |command_line| and
 // |is_per_user_install|).
 base::string16 GetExpectedAppId(const base::CommandLine& command_line,
                                 bool is_per_user_install) {
   base::FilePath user_data_dir;
   if (command_line.HasSwitch(switches::kUserDataDir))
     user_data_dir = command_line.GetSwitchValuePath(switches::kUserDataDir);
   else
     chrome::GetDefaultUserDataDirectory(&user_data_dir);
   // Adjust with any policy that overrides any other way to set the path.
@@ skipping 12 matching lines @@
 
   base::FilePath profile_path = user_data_dir.Append(profile_subdir);
   base::string16 app_name;
   if (command_line.HasSwitch(switches::kApp)) {
     app_name = base::UTF8ToUTF16(web_app::GenerateApplicationNameFromURL(
         GURL(command_line.GetSwitchValueASCII(switches::kApp))));
   } else if (command_line.HasSwitch(switches::kAppId)) {
     app_name = base::UTF8ToUTF16(
         web_app::GenerateApplicationNameFromExtensionId(
             command_line.GetSwitchValueASCII(switches::kAppId)));
+  } else if (command_line.HasSwitch(switches::kShowAppList)) {
+    app_name = GetAppListAppName();
   } else {
     BrowserDistribution* dist = BrowserDistribution::GetDistribution();
     app_name = ShellUtil::GetBrowserModelId(dist, is_per_user_install);
   }
   DCHECK(!app_name.empty());
 
   return win::GetAppModelIdForProfile(app_name, profile_path);
 }
 
 void MigrateTaskbarPinsCallback() {
@@ skipping 558 matching lines @@
     if (base::PathExists(shortcut))
       return shortcut;
   }
 
   return base::FilePath();
 }
 
 }  // namespace win
 
 }  // namespace shell_integration