embedding: begin cef string_multimap api

cef_string_multimap_alloc()

ports/cef/string_multimap.rs

@@ -0,0 +1,22 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use eutil::slice_to_str;
+use libc::{c_int};
+use std::collections::TreeMap;
+use std::mem;
+use std::string::String;
+use string::{cef_string_userfree_utf8_alloc,cef_string_userfree_utf8_free,cef_string_utf8_set};
+use types::{cef_string_multimap_t,cef_string_t};
+
+
+//cef_string_multimap
+
+#[no_mangle]
+pub extern "C" fn cef_string_multimap_alloc() -> *mut cef_string_multimap_t {
+    unsafe {
+         let smm: Box<TreeMap<String, Vec<*mut cef_string_t>>> = box TreeMap::new();
+         mem::transmute(smm)
+    }
+}