Add --auto-open-devtools-for-tabs flag.

chrome/test/base/testing_browser_process.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/test/base/testing_browser_process.h"
 
 #include "base/strings/string_util.h"
 #include "base/time/default_tick_clock.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 240 matching lines @@
 #endif
 }
 
 message_center::MessageCenter* TestingBrowserProcess::message_center() {
   return message_center::MessageCenter::Get();
 }
 
 IntranetRedirectDetector* TestingBrowserProcess::intranet_redirect_detector() {
   return nullptr;
 }
+
 void TestingBrowserProcess::CreateDevToolsHttpProtocolHandler(
     const std::string& ip,
-    uint16_t port) {}
+    uint16_t port) {
+}
+
+void TestingBrowserProcess::CreateDevToolsAutoOpener() {
+}
 
 unsigned int TestingBrowserProcess::AddRefModule() {
   return ++module_ref_count_;
 }
 
 unsigned int TestingBrowserProcess::ReleaseModule() {
   DCHECK_GT(module_ref_count_, 0U);
   return --module_ref_count_;
 }
 
@@ skipping 186 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
 TestingBrowserProcessInitializer::TestingBrowserProcessInitializer() {
   TestingBrowserProcess::CreateInstance();
 }
 
 TestingBrowserProcessInitializer::~TestingBrowserProcessInitializer() {
   TestingBrowserProcess::DeleteInstance();
 }