[chromedriver] Add chrome.detach option for configuring Chrome not to quit

chrome/test/webdriver/commands/create_session.cc

 // Copyright (c) 2011 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/webdriver/commands/create_session.h"
 
 #include <sstream>
 #include <string>
 
 #include "base/base64.h"
@@ skipping 179 matching lines @@
   }
 
   Session::Options session_options;
   Error* error = NULL;
   error = GetBooleanCapability(capabilities, "chrome.nativeEvents",
                                &session_options.use_native_events);
   if (!error) {
     error = GetBooleanCapability(capabilities, "chrome.loadAsync",
                                  &session_options.load_async);
   }
+  if (!error) {
+    error = GetBooleanCapability(capabilities, "chrome.detach",
+                                 &browser_options.detach_process);
+  }
   if (error) {
     response->SetError(error);
     return;
   }
 
   // Session manages its own liftime, so do not call delete.
   Session* session = new Session(session_options);
   error = session->Init(browser_options);
   if (error) {
     response->SetError(error);
@@ skipping 15 matching lines @@
   // difficult, and returning the hostname causes perf problems with the python
   // bindings on Windows.
   std::ostringstream stream;
   stream << SessionManager::GetInstance()->url_base() << "/session/"
          << session->id();
   response->SetStatus(kSeeOther);
   response->SetValue(Value::CreateStringValue(stream.str()));
 }
 
 }  // namespace webdriver