Bug 1659407 - Remove newCacheStructure webconsole trait. r=ladybenko.

Differential Revision: https://phabricator.services.mozilla.com/D87234

devtools/server/actors/webconsole.js

@@ -196,8 +196,6 @@ const WebConsoleActor = ActorClassWithSpec(webconsoleSpec, {
     }
 
     this.traits = {
-      // Supports new cached messages structure for 77+
-      newCacheStructure: true,
       // Supports retrieving blocked urls
       blockedUrls: true,
     };

devtools/shared/resources/legacy-listeners/error-messages.js

@@ -43,29 +43,13 @@ module.exports = async function({
   // /!\ The actor implementation requires to call startListeners("PageError") first /!\
   let { messages } = await webConsoleFront.getCachedMessages(["PageError"]);
 
-  // On older server (< v77), we're also getting LogMessage cached messages, so we need
-  // to ignore those.
   // On server < v79, we're also getting CSS Messages that we need to filter out.
-  messages = messages.filter(message => {
-    return (
-      (webConsoleFront.traits.newCacheStructure ||
-        !message._type ||
-        message._type == "PageError") &&
-      message.pageError.category !== MESSAGE_CATEGORY.CSS_PARSER
-    );
-  });
+  messages = messages.filter(
+    message => message.pageError.category !== MESSAGE_CATEGORY.CSS_PARSER
+  );
 
-  messages = messages.map(message => {
-    // Handling cached messages for servers older than Firefox 78.
-    // Wrap the message into a `pageError` attribute, to match `pageError` behavior
-    if (message._type) {
-      return {
-        pageError: message,
-        resourceType: ResourceWatcher.TYPES.ERROR_MESSAGE,
-      };
-    }
+  messages.forEach(message => {
     message.resourceType = ResourceWatcher.TYPES.ERROR_MESSAGE;
-    return message;
   });
   // Cached messages don't have the same shape as live messages,
   // so we need to transform them.

devtools/shared/resources/legacy-listeners/platform-messages.js

@@ -29,19 +29,7 @@ module.exports = async function({ targetList, targetFront, onAvailable }) {
 
   // Fetch already existing messages
   // /!\ The actor implementation requires to call startListeners("PageError") first /!\
-  // On older server (< v77), cached messages have to be retrieved at the same time as
-  // PageError messages.
-  let { messages } = await webConsoleFront.getCachedMessages([
-    webConsoleFront.traits.newCacheStructure ? "LogMessage" : "PageError",
-  ]);
-
-  // On older server (< v77), we're also getting pageError cached messages, so we need
-  // to ignore those.
-  messages = messages.filter(message => {
-    return (
-      webConsoleFront.traits.newCacheStructure || message._type === "LogMessage"
-    );
-  });
+  const { messages } = await webConsoleFront.getCachedMessages(["LogMessage"]);
 
   for (const message of messages) {
     // Handling cached messages for servers older than Firefox 78.