UI: Use shared cookie manager for YT Control Panel

Use the cookie manager shared by service integration browser docks for
YouTube Control Panel.

This will enable users of the YouTube Chat panel have a better (creator
facing) experience for observed chat message latency, for those users
who sign-in to the YouTube Control Panel or YouTube Live Chat.

NOTE: This commit does not have any migration logic for existing
logged-in users of YTCP, they will need to sign-in again. Based on usage
stats, this is not going to affect a large fraction of OBS users.

UI/window-dock-youtube-app.cpp

@@ -33,22 +33,13 @@ static constexpr const char *INGESTION_STOPPED = "INGESTION_STOPPED";
 
 YouTubeAppDock::YouTubeAppDock(const QString &title)
 	: BrowserDock(title),
-	  dockBrowser(nullptr),
-	  cookieManager(nullptr)
+	  dockBrowser(nullptr)
 {
 	cef->init_browser();
 	OBSBasic::InitBrowserPanelSafeBlock();
 	AddYouTubeAppDock();
 }
 
-YouTubeAppDock::~YouTubeAppDock()
-{
-	if (cookieManager) {
-		cookieManager->FlushStore();
-		delete cookieManager;
-	}
-}
-
 bool YouTubeAppDock::IsYTServiceSelected()
 {
 	if (!cef_js_avail)
@@ -78,9 +69,12 @@ void YouTubeAppDock::SettingsUpdated(bool cleanup)
 
 	// definitely cleanup if YT switched off
 	if (!ytservice || cleanup) {
-		if (cookieManager)
-			cookieManager->DeleteCookies("", "");
+		if (panel_cookies) {
+			panel_cookies->DeleteCookies("youtube.com", "");
+			panel_cookies->DeleteCookies("google.com", "");
+		}
 	}
+
 	if (ytservice)
 		Update();
 }
@@ -135,16 +129,9 @@ void YouTubeAppDock::AddYouTubeAppDock()
 
 void YouTubeAppDock::CreateBrowserWidget(const std::string &url)
 {
-	std::string dir_name = std::string("obs_profile_cookies_youtube/") +
-			       config_get_string(OBSBasic::Get()->Config(),
-						 "Panels", "CookieId");
-	if (cookieManager)
-		delete cookieManager;
-	cookieManager = cef->create_cookie_manager(dir_name, true);
-
 	if (dockBrowser)
 		delete dockBrowser;
-	dockBrowser = cef->create_widget(this, url, cookieManager);
+	dockBrowser = cef->create_widget(this, url, panel_cookies);
 	if (!dockBrowser)
 		return;
 

UI/window-dock-youtube-app.hpp

@@ -11,7 +11,6 @@ class YouTubeAppDock : public BrowserDock {
 
 public:
 	YouTubeAppDock(const QString &title);
-	~YouTubeAppDock();
 
 	enum streaming_mode_t { YTSM_ACCOUNT, YTSM_STREAM_KEY };
 
@@ -49,5 +48,4 @@ class YouTubeAppDock : public BrowserDock {
 
 	QString channelId;
 	QPointer<QCefWidget> dockBrowser;
-	QCefCookieManager *cookieManager; // is not a Qt object
 };