Added empty methods for wxIcon functions to match the API on other platforms.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32108 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/icon.cpp

@@ -83,6 +83,22 @@ int wxIcon::GetHeight() const
    return M_ICONDATA->GetHeight();
 }
 
+int wxIcon::GetDepth() const{
+	return 32; 
+}
+
+void wxIcon::SetDepth(int depth){
+	
+}
+
+void wxIcon::SetWidth(int width){
+	
+}
+
+void wxIcon::SetHeight(int height){
+	
+}
+
 bool wxIcon::Ok() const
 {
     return m_refData != NULL ;