[chromedriver] Return session not created error if version check fails.

chrome/test/chromedriver/chrome_launcher.cc

 // Copyright (c) 2013 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/chromedriver/chrome_launcher.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <utility>
@@ skipping 204 matching lines @@
                              browser_info->android_package.c_str()));
     }
   }
 
   base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
   if (cmd_line->HasSwitch("disable-build-check")) {
     LOG(WARNING) << "You are using an unsupported command-line switch: "
                     "--disable-build-check. Please don't report bugs that "
                     "cannot be reproduced with this switch removed.";
   } else if (browser_info->build_no < kMinimumSupportedChromeBuildNo) {
-    return Status(kUnknownError, "Chrome version must be >= " +
-        GetMinimumSupportedChromeVersion());
+    return Status(
+        kSessionNotCreatedException,
+        "Chrome version must be >= " + GetMinimumSupportedChromeVersion());
   }
 
   while (base::TimeTicks::Now() < deadline) {
     WebViewsInfo views_info;
     client->GetWebViewsInfo(&views_info);
     for (size_t i = 0; i < views_info.GetSize(); ++i) {
       if (views_info.Get(i).type == WebViewInfo::kPage) {
         *user_client = std::move(client);
         return Status(kOk);
       }
@@ skipping 644 matching lines @@
   // Write empty "First Run" file, otherwise Chrome will wipe the default
   // profile that was written.
   if (base::WriteFile(
           user_data_dir.Append(chrome::kFirstRunSentinel), "", 0) != 0) {
     return Status(kUnknownError, "failed to write first run file");
   }
   return Status(kOk);
 }
 
 }  // namespace internal