Add a command-line switch "disable-desktop-shortcuts" to disable profile desktop shortcuts handling

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
===================================================================
--- chrome/common/chrome_switches.cc	(revision 120775)
+++ chrome/common/chrome_switches.cc	(working copy)
@@ -1288,6 +1288,12 @@
 const char kKioskModePrinting[]             = "kiosk-printing";
 #endif
 
+#if defined(OS_WIN)
+// Disables profile desktop shortcuts handling, preventing their creation,
+// modification or removal.
+const char kDisableDesktopShortcuts[]       = "disable-desktop-shortcuts";
+#endif
+
 #if defined(TOOLKIT_VIEWS)
 // Enables debug paint in views framework. Enabling this causes the damaged
 // region being painted to flash in red.