fix: webContents return type incorrect (#38026)

* fix: webContents type incorrect

* fix: ci failed

* fix: ci failed 2

docs/api/web-contents.md

@@ -65,28 +65,28 @@ for all windows, webviews, opened devtools, and devtools extension background pa
 
 ### `webContents.getFocusedWebContents()`
 
-Returns `WebContents` | null - The web contents that is focused in this application, otherwise
+Returns `WebContents | null` - The web contents that is focused in this application, otherwise
 returns `null`.
 
 ### `webContents.fromId(id)`
 
 * `id` Integer
 
-Returns `WebContents` | undefined - A WebContents instance with the given ID, or
+Returns `WebContents | undefined` - A WebContents instance with the given ID, or
 `undefined` if there is no WebContents associated with the given ID.
 
 ### `webContents.fromFrame(frame)`
 
 * `frame` WebFrameMain
 
-Returns `WebContents` | undefined - A WebContents instance with the given WebFrameMain, or
+Returns `WebContents | undefined` - A WebContents instance with the given WebFrameMain, or
 `undefined` if there is no WebContents associated with the given WebFrameMain.
 
 ### `webContents.fromDevToolsTargetId(targetId)`
 
 * `targetId` string - The Chrome DevTools Protocol [TargetID](https://chromedevtools.github.io/devtools-protocol/tot/Target/#type-TargetID) associated with the WebContents instance.
 
-Returns `WebContents` | undefined - A WebContents instance with the given TargetID, or
+Returns `WebContents | undefined` - A WebContents instance with the given TargetID, or
 `undefined` if there is no WebContents associated with the given TargetID.
 
 When communicating with the [Chrome DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/),

spec/api-web-contents-spec.ts

@@ -492,16 +492,16 @@ describe('webContents module', () => {
     ifit(!(process.platform === 'win32' && process.arch === 'arm64'))('returns the focused web contents', async () => {
       const w = new BrowserWindow({ show: true });
       await w.loadFile(path.join(__dirname, 'fixtures', 'blank.html'));
-      expect(webContents.getFocusedWebContents().id).to.equal(w.webContents.id);
+      expect(webContents.getFocusedWebContents()?.id).to.equal(w.webContents.id);
 
       const devToolsOpened = once(w.webContents, 'devtools-opened');
       w.webContents.openDevTools();
       await devToolsOpened;
-      expect(webContents.getFocusedWebContents().id).to.equal(w.webContents.devToolsWebContents!.id);
+      expect(webContents.getFocusedWebContents()?.id).to.equal(w.webContents.devToolsWebContents!.id);
       const devToolsClosed = once(w.webContents, 'devtools-closed');
       w.webContents.closeDevTools();
       await devToolsClosed;
-      expect(webContents.getFocusedWebContents().id).to.equal(w.webContents.id);
+      expect(webContents.getFocusedWebContents()?.id).to.equal(w.webContents.id);
     });
 
     it('does not crash when called on a detached dev tools window', async () => {

spec/chromium-spec.ts

@@ -1945,7 +1945,7 @@ describe('chromium features', () => {
       await w1.loadFile(path.join(__dirname, 'fixtures', 'blank.html'));
       await w2.loadFile(path.join(__dirname, 'fixtures', 'blank.html'));
       await w3.loadFile(path.join(__dirname, 'fixtures', 'blank.html'));
-      expect(webContents.getFocusedWebContents().id).to.equal(w2.webContents.id);
+      expect(webContents.getFocusedWebContents()?.id).to.equal(w2.webContents.id);
       let focus = false;
       focus = await w1.webContents.executeJavaScript(
         'document.hasFocus()'