shell32: Constify some variables (2 of 2)

[Andrew Talbot]

Changelog:
    shell32: Constify some variables.

diff --git a/dlls/shell32/shell32_main.h b/dlls/shell32/shell32_main.h
index 367bbde..a9e3156 100644
--- a/dlls/shell32/shell32_main.h
+++ b/dlls/shell32/shell32_main.h
@@ -81,7 +81,7 @@ LPDATAOBJECT	IDataObject_Constructor(HWND hwndOwner, LPCITEMIDLIST myPidl, LPCIT
 LPENUMFORMATETC	IEnumFORMATETC_Constructor(UINT, const FORMATETC []);
 
 LPCLASSFACTORY	IClassFactory_Constructor(REFCLSID);
-IContextMenu2 *	ISvItemCm_Constructor(LPSHELLFOLDER pSFParent, LPCITEMIDLIST pidl, LPCITEMIDLIST *aPidls, UINT uItemCount);
+IContextMenu2 *	ISvItemCm_Constructor(LPSHELLFOLDER pSFParent, LPCITEMIDLIST pidl, const LPCITEMIDLIST *aPidls, UINT uItemCount);
 IContextMenu2 *	ISvBgCm_Constructor(LPSHELLFOLDER pSFParent, BOOL bDesktop);
 LPSHELLVIEW	IShellView_Constructor(LPSHELLFOLDER);
 
diff --git a/dlls/shell32/shv_item_cmenu.c b/dlls/shell32/shv_item_cmenu.c
index 8b9ff0f..1c9ddca 100644
--- a/dlls/shell32/shv_item_cmenu.c
+++ b/dlls/shell32/shv_item_cmenu.c
@@ -77,7 +77,7 @@ static BOOL ISvItemCm_CanRenameItems(ItemCmImpl *This)
 /**************************************************************************
 *   ISvItemCm_Constructor()
 */
-IContextMenu2 *ISvItemCm_Constructor(LPSHELLFOLDER pSFParent, LPCITEMIDLIST pidl, LPCITEMIDLIST *apidl, UINT cidl)
+IContextMenu2 *ISvItemCm_Constructor(LPSHELLFOLDER pSFParent, LPCITEMIDLIST pidl, const LPCITEMIDLIST *apidl, UINT cidl)
 {	ItemCmImpl* cm;
 	UINT  u;