feat: optionally save complete performance log in chrome benchpress tests (#27551)

If RAW_PERFLOG_PATH is passed in as an option, benchpress saves chrome's
performance log to a json file. This allows developers to download the
json file and upload it to their browser to get a breakdown of chrome-side
resource usage during a test.

PR Close #27551

packages/benchpress/test/webdriver/chrome_driver_extension_spec.ts

@@ -47,7 +47,8 @@ import {TraceEventFactory} from '../trace_event_factory';
                           provide: WebDriverAdapter,
                           useValue: new MockDriverAdapter(log, perfRecords, messageMethod)
                         },
-                        {provide: Options.USER_AGENT, useValue: userAgent}
+                        {provide: Options.USER_AGENT, useValue: userAgent},
+                        {provide: Options.RAW_PERFLOG_PATH, useValue: null}
                       ])
                       .get(ChromeDriverExtension);
       return extension;