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/MiniBrowser/uMiniBrowser.pas

@@ -258,6 +258,8 @@ type
 var
   MiniBrowserFrm : TMiniBrowserFrm;
 
+procedure CreateGlobalCEFApp;
+
 implementation
 
 {$R *.lfm}
@@ -270,6 +272,15 @@ uses
 // 1. FormCloseQuery sets CanClose to FALSE calls TChromium.CloseBrowser which triggers the TChromium.OnClose event.
 // 2. TChromium.OnClose sends a CEFBROWSER_DESTROY message to destroy CEFWindowParent1 in the main thread, which triggers the TChromium.OnBeforeClose event.
 // 3. TChromium.OnBeforeClose sets FCanClose := True and sends WM_CLOSE to the form.
+                    
+
+procedure CreateGlobalCEFApp;
+begin
+  GlobalCEFApp                     := TCefApplication.Create;
+  GlobalCEFApp.LogFile             := 'debug.log';
+  GlobalCEFApp.LogSeverity         := LOGSEVERITY_INFO;
+  GlobalCEFApp.DisableFeatures     := 'NetworkService';
+end;
 
 procedure TMiniBrowserFrm.BackBtnClick(Sender: TObject);
 begin