Dump initial prototype of devtools server into the build. Expect lies if you try to use it for anything real.

components/devtools_traits/lib.rs

@@ -0,0 +1,33 @@
+/* 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/. */
+
+#![crate_name = "devtools_traits"]
+#![crate_type = "rlib"]
+
+#![comment = "The Servo Parallel Browser Project"]
+#![license = "MPL"]
+
+pub type DevtoolsControlChan = Sender<DevtoolsControlMsg>;
+pub type DevtoolsControlPort = Receiver<DevtoolScriptControlMsg>;
+
+pub enum DevtoolsControlMsg {
+    NewGlobal(Sender<DevtoolScriptControlMsg>),
+    ServerExitMsg
+}
+
+pub enum EvaluateJSReply {
+    VoidValue,
+    NullValue,
+    NumberValue(f64),
+    StringValue(String),
+    ActorValue(String),
+}
+
+pub enum DevtoolScriptControlMsg {
+    EvaluateJS(String, Sender<EvaluateJSReply>),
+}
+
+pub enum ScriptDevtoolControlMsg {
+    ReportConsoleMsg(String),
+}