| Index: chrome/test/webdriver/commands/response.cc
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| diff --git a/chrome/test/webdriver/commands/response.cc b/chrome/test/webdriver/commands/response.cc
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| index d25675472c4b27ad217114c5c336856c615c85d2..153e6b71a8234625197aa5353cf8bf8e1c64a479 100644
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| --- a/chrome/test/webdriver/commands/response.cc
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| +++ b/chrome/test/webdriver/commands/response.cc
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| @@ -19,8 +19,11 @@ const char* const kValueKey = "value";
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|  const char* const kMessageKey = "message";
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|  const char* const kScreenKey = "screen";
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|  const char* const kClassKey = "class";
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| -const char* const kStackTraceFileNameKey = "stackTrace.fileName";
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| -const char* const kStackTraceLineNumberKey = "stackTrace.lineNumber";
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| +const char* const kStackTraceKey = "stackTrace";
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| +const char* const kStackTraceFileNameKey = "fileName";
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| +const char* const kStackTraceClassNameKey = "className";
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| +const char* const kStackTraceMethodNameKey = "methodName";
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| +const char* const kStackTraceLineNumberKey = "lineNumber";
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|  
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|  }  // namespace
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|  
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| @@ -57,8 +60,15 @@ void Response::SetError(ErrorCode error_code, const std::string& message,
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|                          const std::string& file, int line) {
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|    DictionaryValue* error = new DictionaryValue;
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|    error->SetString(kMessageKey, message);
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| -  error->SetString(kStackTraceFileNameKey, file);
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| -  error->SetInteger(kStackTraceLineNumberKey, line);
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| +
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| +  DictionaryValue* stack = new DictionaryValue;
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| +  stack->SetString(kStackTraceFileNameKey, file);
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| +  stack->SetString(kStackTraceClassNameKey, "");
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| +  stack->SetString(kStackTraceMethodNameKey, "");
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| +  stack->SetInteger(kStackTraceLineNumberKey, line);
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| +  ListValue* stack_list = new ListValue;
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| +  stack_list->Append(stack);
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| +  error->Set(kStackTraceKey, stack_list);
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|  
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|    SetStatus(error_code);
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|    SetValue(error);
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| @@ -75,4 +85,3 @@ std::string Response::ToJSON() const {
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|  }
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|  
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|  }  // namespace webdriver
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| -
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| 
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