Add a flag to control whether there is a shortcut for the app list / launcher in the Windows taskba…

chrome/browser/shell_integration.h

Index: chrome/browser/shell_integration.h
diff --git a/chrome/browser/shell_integration.h b/chrome/browser/shell_integration.h
index ac1ad30811c25f7a5fb5d51762e26063d999a305..d8aca1f449eb03185d5d2a94253bad8c89c51114 100644
--- a/chrome/browser/shell_integration.h
+++ b/chrome/browser/shell_integration.h
@@ -141,6 +141,9 @@ class ShellIntegration {
   // calling GetAppModelIdForProfile() with ShellUtil::GetAppId() as app_name.
   static string16 GetChromiumModelIdForProfile(const FilePath& profile_path);
 
+  // Get the AppUserModelId for the App List, for the profile in |profile_path|.
+  static string16 GetAppListAppModelIdForProfile(const FilePath& profile_path);
+
   // Returns the path to the Chromium icon. This is used to specify the icon
   // to use for the taskbar group on Win 7.
   static string16 GetChromiumIconPath();