Refactor ShellUtil shortcut code -- single multi-purpose methods as opposed to many slighlty diffe…

chrome/browser/shell_integration_win.cc

Index: chrome/browser/shell_integration_win.cc
diff --git a/chrome/browser/shell_integration_win.cc b/chrome/browser/shell_integration_win.cc
index 34e8d3e79737ba20b23027b7739d81e1a387200c..fe34868bc706c43859f428c264309159668a7a39 100644
--- a/chrome/browser/shell_integration_win.cc
+++ b/chrome/browser/shell_integration_win.cc
@@ -608,7 +608,8 @@ FilePath ShellIntegration::GetStartMenuShortcut(const FilePath& chrome_exe) {
       continue;
     }
 
-    shortcut = shortcut.Append(shortcut_name).Append(shortcut_name + L".lnk");
+    shortcut = shortcut.Append(shortcut_name).Append(shortcut_name +
+                                                     installer::kLnkExt);
     if (file_util::PathExists(shortcut))
       return shortcut;
   }