Bug 1315044 - Cache ContentActor forms to prevent creating new one when calling RootActor.getProcess multiple times. r=jryans

MozReview-Commit-ID: 3YyShRXQhel

devtools/server/main.js

@@ -715,7 +715,7 @@ var DebuggerServer = {
     return this._onConnection(transport, prefix, true);
   },
 
-  connectToContent(connection, mm) {
+  connectToContent(connection, mm, onDestroy) {
     let deferred = SyncPromise.defer();
 
     let prefix = connection.allocID("content-process");
@@ -764,6 +764,10 @@ var DebuggerServer = {
           // Nothing to do
         }
       }
+
+      if (onDestroy) {
+        onDestroy(mm);
+      }
     }
 
     let onMessageManagerClose = DevToolsUtils.makeInfallible((subject, topic, data) => {