chore(chromium): allow passing --remote-debugging-port for debugging (#1857)

Author: pavelfeldman

src/server/chromium.ts

@@ -149,7 +149,7 @@ export class Chromium implements BrowserType<CRBrowser> {
     const userDataDirArg = args.find(arg => arg.startsWith('--user-data-dir'));
     if (userDataDirArg)
       throw new Error('Pass userDataDir parameter instead of specifying --user-data-dir argument');
-    if (args.find(arg => arg.startsWith('--remote-debugging-')))
+    if (args.find(arg => arg.startsWith('--remote-debugging-pipe')))
       throw new Error('Playwright manages remote debugging connection itself.');
     if (launchType !== 'persistent' && args.find(arg => !arg.startsWith('-')))
       throw new Error('Arguments can not specify page to be opened');

test/chromium/launcher.spec.js

@@ -26,11 +26,11 @@ describe('launcher', function() {
     const error = await browserType.launchServer(options).catch(e => e);
     expect(error.message).toContain('Playwright manages remote debugging connection itself');
   });
-  it('should throw with remote-debugging-port argument', async({browserType, defaultBrowserOptions}) => {
+  it('should not throw with remote-debugging-port argument', async({browserType, defaultBrowserOptions}) => {
     const options = Object.assign({}, defaultBrowserOptions);
-    options.args = ['--remote-debugging-port=9222'].concat(options.args || []);
-    const error = await browserType.launchServer(options).catch(e => e);
-    expect(error.message).toContain('Playwright manages remote debugging connection itself');
+    options.args = ['--remote-debugging-port=0'].concat(options.args || []);
+    const browser = await browserType.launchServer(options);
+    await browser.close();
   });
   it('should open devtools when "devtools: true" option is given', async({browserType, defaultBrowserOptions}) => {
     const browser = await browserType.launch(Object.assign({devtools: true}, {...defaultBrowserOptions, headless: false}));