Disable dev mode bubble and some infobars during remote debugging.

chrome/browser/ui/startup/startup_browser_creator_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/startup/startup_browser_creator_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 792 matching lines @@
   if (HasPendingUncleanExit(browser->profile()) &&
       !SessionCrashedBubble::Show(browser)) {
 #if defined(OS_MACOSX) && !BUILDFLAG(MAC_VIEWS_BROWSER)
     SessionCrashedInfoBarDelegate::Create(browser);
 #endif
   }
 
   // The below info bars are only added to the first profile which is launched.
   // Other profiles might be restoring the browsing sessions asynchronously,
   // so we cannot add the info bars to the focused tabs here.
+  //
+  // These info bars are not shown when the browser is being controlled by a
+  // test or a remote debugging client, so that they don't interfere with
+  // automated tests that assume no info bars.
   if (is_process_startup == chrome::startup::IS_PROCESS_STARTUP &&
-      !command_line_.HasSwitch(switches::kTestType)) {
+      !command_line_.HasSwitch(switches::kTestType) &&
+      !command_line_.HasSwitch(switches::kRemoteDebuggingPort)) {
     chrome::ShowBadFlagsPrompt(browser);
     GoogleApiKeysInfoBarDelegate::Create(InfoBarService::FromWebContents(
         browser->tab_strip_model()->GetActiveWebContents()));
     ObsoleteSystemInfoBarDelegate::Create(InfoBarService::FromWebContents(
         browser->tab_strip_model()->GetActiveWebContents()));
 
 #if !defined(OS_CHROMEOS)
     if (!command_line_.HasSwitch(switches::kNoDefaultBrowserCheck)) {
       // Generally, the default browser prompt should not be shown on first
       // run. However, when the set-as-default dialog has been suppressed, we
@@ skipping 404 matching lines @@
 #if defined(OS_WIN)
   TriggeredProfileResetter* triggered_profile_resetter =
       TriggeredProfileResetterFactory::GetForBrowserContext(profile_);
   // TriggeredProfileResetter instance will be nullptr for incognito profiles.
   if (triggered_profile_resetter) {
     has_reset_trigger = triggered_profile_resetter->HasResetTrigger();
   }
 #endif  // defined(OS_WIN)
   return has_reset_trigger;
 }