Fixed a bug where pyautolib.cc did not log the automation error message.

chrome/test/pyautolib/pyautolib.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 "base/base_paths.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/string_number_conversions.h"
@@ skipping 287 matching lines @@
                            &response);
   }
   return response;
 }
 
 void PyUITestBase::ErrorResponse(
     const std::string& error_string,
     const std::string& request,
     std::string* response) {
   base::DictionaryValue error_dict;
-  LOG(ERROR) << "Error during automation: " << *response;
-  error_dict.SetString("error",
-                       StringPrintf("%s for %s",
-                                    error_string.c_str(),
-                                    request.c_str()));
+  std::string error_msg = StringPrintf("%s for %s", error_string.c_str(),
+                                       request.c_str());
+  LOG(ERROR) << "Error during automation: " << error_msg;
+  error_dict.SetString("error", error_msg);
   base::JSONWriter::Write(&error_dict, response);
 }
 
 void PyUITestBase::RequestFailureResponse(
     const std::string& request,
     const base::TimeDelta& duration,
     const base::TimeDelta& timeout,
     std::string* response) {
   // TODO(craigdh): Determine timeout directly from IPC's Send().
   if (duration >= timeout) {
     ErrorResponse(
         StringPrintf("Request timed out after %d seconds",
                      static_cast<int>(duration.InSeconds())),
         request, response);
   } else {
     // TODO(craigdh): Determine specific cause.
     ErrorResponse("Chrome failed to respond", request, response);
   }
 }
 
 bool PyUITestBase::ResetToDefaultTheme() {
   return automation()->ResetToDefaultTheme();
 }