Partially implemented the Manage Time functionality

src/platform/content-messages.js

@@ -1,9 +1,13 @@
 function createPlatformContentMessages({
   messageTypes,
+  requestCache,
   environment
 }) {
   const { browser, chrome } = environment;
   function sendRuntimeMessage(message) {
+    return requestCache ? requestCache.send(message, sendUncached) : sendUncached(message);
+  }
+  function sendUncached(message) {
     const runtimeApi = typeof browser !== "undefined" ? browser : chrome;
 
     if (!runtimeApi || !runtimeApi.runtime || !runtimeApi.runtime.sendMessage) {