[chromedriver] Implement connecting to devtools and loading a page.

chrome/test/chromedriver/status.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/chromedriver/status.h"
 
 namespace {
 
 // Returns the string equivalent of the given |ErrorCode|.
 const char* DefaultMessageForStatusCode(StatusCode code) {
   switch (code) {
     case kOk:
       return "ok";
     case kUnknownCommand:
       return "unknown command";
     case kUnknownError:
       return "unknown error";
     case kSessionNotCreatedException:
       return "session not created exception";
     case kNoSuchSession:
       return "no such session";
+    case kChromeNotReachable:
+      return "chrome not reachable";
     default:
       return "<unknown>";
   }
 }
 
 }  // namespace
 
 Status::Status(StatusCode code)
     : code_(code), msg_(DefaultMessageForStatusCode(code)) {}
 
 Status::Status(StatusCode code, const std::string& details)
     : code_(code),
       msg_(DefaultMessageForStatusCode(code) + std::string(": ") + details) {
 }
 
+Status::Status(StatusCode code, const Status& cause)
+    : code_(code),
+      msg_(DefaultMessageForStatusCode(code) + std::string("\nfrom ") +
+           cause.message()) {}
+
+Status::Status(StatusCode code,
+               const std::string& details,
+               const Status& cause)
+    : code_(code),
+      msg_(DefaultMessageForStatusCode(code) + std::string(": ") + details +
+           "\nfrom " + cause.message()) {
+}
+
+Status::~Status() {}
+
 bool Status::IsOk() const {
   return code_ == kOk;
 }
 
 bool Status::IsError() const {
   return code_ != kOk;
 }
 
 StatusCode Status::code() const {
   return code_;
 }
 
 const std::string& Status::message() const {
   return msg_;
 }