Add default testing command line flags in UITestBase instead of ProxyLauncher.

chrome/test/webdriver/webdriver_automation.cc

Index: chrome/test/webdriver/webdriver_automation.cc
diff --git a/chrome/test/webdriver/webdriver_automation.cc b/chrome/test/webdriver/webdriver_automation.cc
index 20fdfae4e199c1aef4e9f297fc2b6ea813ddbc8a..92981e728f1b05fb367097b7ac3136d3bacbb037 100644
--- a/chrome/test/webdriver/webdriver_automation.cc
+++ b/chrome/test/webdriver/webdriver_automation.cc
@@ -357,12 +357,24 @@ void Automation::Init(
   if (CommandLine::ForCurrentProcess()->HasSwitch("no-sandbox")) {
     command.AppendSwitch(switches::kNoSandbox);
   }
+  command.AppendSwitch(switches::kEnableLogging);
+  command.AppendSwitchASCII(switches::kLoggingLevel, "1");
   command.AppendSwitch(switches::kDisableHangMonitor);
   command.AppendSwitch(switches::kDisablePromptOnRepost);
   command.AppendSwitch(switches::kDomAutomationController);
   command.AppendSwitch(switches::kFullMemoryCrashReport);
   command.AppendSwitch(switches::kNoDefaultBrowserCheck);
   command.AppendSwitch(switches::kNoFirstRun);
+  command.AppendSwitch(switches::kDisableWebResources);
+  command.AppendSwitch(switches::kSbDisableAutoUpdate);
+  command.AppendSwitch(switches::kDisableComponentUpdate);
+  command.AppendSwitch(switches::kDisableDefaultApps);
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+  command.AppendSwitchASCII(switches::kPasswordStore, "basic");
+#endif
+#if defined(OS_MACOSX)
+  command.AppendSwitch(switches::kUseMockKeychain);
+#endif
   if (options.detach_process)
     command.AppendSwitch(switches::kAutomationReinitializeOnChannelError);
   if (options.ignore_certificate_errors)