fix: webContents.print options should be optional (#41467)

spec/api-web-contents-spec.ts

@@ -187,11 +187,32 @@ describe('webContents module', () => {
 
     afterEach(closeAllWindows);
 
+    it('does not throw when options are not passed', () => {
+      expect(() => {
+        w.webContents.print();
+      }).not.to.throw();
+
+      expect(() => {
+        w.webContents.print(undefined);
+      }).not.to.throw();
+    });
+
+    it('does not throw when options object is empty', () => {
+      expect(() => {
+        w.webContents.print({});
+      }).not.to.throw();
+    });
+
     it('throws when invalid settings are passed', () => {
       expect(() => {
         // @ts-ignore this line is intentionally incorrect
         w.webContents.print(true);
       }).to.throw('webContents.print(): Invalid print settings specified.');
+
+      expect(() => {
+        // @ts-ignore this line is intentionally incorrect
+        w.webContents.print(null);
+      }).to.throw('webContents.print(): Invalid print settings specified.');
     });
 
     it('throws when an invalid pageSize is passed', () => {