Update to CEF 75.0.8

- Restored the GlobalCEFApp.DeleteCookies property
- Fixed the issue with the arrow keys in OSR demos
- Fixed the default return values for TCustomCookieAccessFilter.CanSendCookie and TCustomCookieAccessFilter.CandSaveCookie
- TCustomResourceRequestHandler and TCustomCookieAccessFilterwill only be created if needed by the TChromium events.

demos/Lazarus/FullScreenBrowser/uMainForm.pas

@@ -105,12 +105,20 @@ type
 var
   MainForm: TMainForm;
 
+procedure CreateGlobalCEFApp;
+
 implementation
 
 {$R *.lfm}
 
 uses
-  uCEFApplication;
+  uCEFApplication;   
+
+procedure CreateGlobalCEFApp;
+begin
+  GlobalCEFApp                     := TCefApplication.Create;
+  GlobalCEFApp.DisableFeatures     := 'NetworkService';
+end;
 
 procedure TMainForm.HandleKeyUp(const aMsg : TMsg; var aHandled : boolean);
 var