Add skipChatRequestInProgressMessage context key and update shutdown veto logic (microsoft#259061)

Author: bhavyaus

src/vs/workbench/contrib/chat/common/chatContextKeys.ts

@@ -62,6 +62,7 @@ export namespace ChatContextKeys {
 	export const remoteJobCreating = new RawContextKey<boolean>('chatRemoteJobCreating', false, { type: 'boolean', description: localize('chatRemoteJobCreating', "True when a remote coding agent job is being created.") });
 	export const hasRemoteCodingAgent = new RawContextKey<boolean>('hasRemoteCodingAgent', false, localize('hasRemoteCodingAgent', "Whether any remote coding agent is available"));
 	export const enableRemoteCodingAgentPromptFileOverlay = new RawContextKey<boolean>('enableRemoteCodingAgentPromptFileOverlay', false, localize('enableRemoteCodingAgentPromptFileOverlay', "Whether the remote coding agent prompt file overlay feature is enabled"));
+	export const skipChatRequestInProgressMessage = new RawContextKey<boolean>('chatSkipRequestInProgressMessage', false, { type: 'boolean', description: localize('chatSkipRequestInProgressMessage', "True when the chat request in progress message should be skipped.") });
 
 	export const Setup = {
 		hidden: new RawContextKey<boolean>('chatSetupHidden', false, true), 		// True when chat setup is explicitly hidden.

src/vs/workbench/contrib/chat/electron-browser/chat.contribution.ts

@@ -141,7 +141,8 @@ class ChatLifecycleHandler extends Disposable {
 		@ILifecycleService lifecycleService: ILifecycleService,
 		@IChatService private readonly chatService: IChatService,
 		@IDialogService private readonly dialogService: IDialogService,
-		@IViewsService private readonly viewsService: IViewsService
+		@IViewsService private readonly viewsService: IViewsService,
+		@IContextKeyService private readonly contextKeyService: IContextKeyService
 	) {
 		super();
 
@@ -156,6 +157,10 @@ class ChatLifecycleHandler extends Disposable {
 			return false;
 		}
 
+		if (ChatContextKeys.skipChatRequestInProgressMessage.getValue(this.contextKeyService) === true) {
+			return false;
+		}
+
 		return this.doShouldVetoShutdown(reason);
 	}