[AI Assistance] Enable persistent history

Bug: 369303513
Change-Id: I8450c3b25294817b18269d3b3afd7585ed70c48d
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6074768
Reviewed-by: Mathias Bynens <[email protected]>
Commit-Queue: Mathias Bynens <[email protected]>

Author: OrKoN

front_end/panels/ai_assistance/agents/AiAgent.ts

@@ -442,10 +442,7 @@ STOP`;
 
   #addHistory(data: ResponseData): void {
     this.#history.push(data);
-    // Remove condition to store the history in storage
-    if (isHistoryEnabled()) {
-      void AiHistoryStorage.instance().upsertHistoryEntry(this.serialized());
-    }
+    void AiHistoryStorage.instance().upsertHistoryEntry(this.serialized());
   }
 
   async * run(query: string, options: {
@@ -658,17 +655,3 @@ function setDebugFreestylerEnabled(enabled: boolean): void {
 }
 // @ts-ignore
 globalThis.setDebugFreestylerEnabled = setDebugFreestylerEnabled;
-
-export function isHistoryEnabled(): boolean {
-  return Boolean(localStorage.getItem('persistentHistoryAiAssistance'));
-}
-
-function setAiAssistancePersistentHistory(enabled: boolean): void {
-  if (enabled) {
-    localStorage.setItem('persistentHistoryAiAssistance', 'true');
-  } else {
-    localStorage.removeItem('persistentHistoryAiAssistance');
-  }
-}
-// @ts-ignore
-globalThis.setAiAssistancePersistentHistory = setAiAssistancePersistentHistory;

front_end/panels/ai_assistance/agents/StylingAgent.test.ts

@@ -1284,8 +1284,6 @@ ANSWER: this is the answer`,
     beforeEach(() => {
       mockHostConfig();
       element = sinon.createStubInstance(SDK.DOMModel.DOMNode);
-      // @ts-ignore
-      setAiAssistancePersistentHistory(true);
     });
 
     it('stores history via AiHistoryStorage', async () => {