Delete old chromedriver code, and remove mongoose webserver.

chrome/test/webdriver/commands/screenshot_command.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/screenshot_command.h"
-
-#include <string>
-#include <vector>
-
-#include "base/base64.h"
-#include "base/values.h"
-#include "chrome/test/webdriver/commands/response.h"
-#include "chrome/test/webdriver/webdriver_error.h"
-#include "chrome/test/webdriver/webdriver_session.h"
-
-namespace webdriver {
-
-ScreenshotCommand::ScreenshotCommand(const std::vector<std::string>& ps,
-                                     const DictionaryValue* const parameters)
-    : WebDriverCommand(ps, parameters) {}
-
-ScreenshotCommand::~ScreenshotCommand() {}
-
-bool ScreenshotCommand::DoesGet() {
-  return true;
-}
-
-void ScreenshotCommand::ExecuteGet(Response* const response) {
-  std::string raw_bytes;
-  Error* error = session_->GetScreenShot(&raw_bytes);
-  if (error) {
-    response->SetError(error);
-    return;
-  }
-
-  // Convert the raw binary data to base 64 encoding for webdriver.
-  std::string base64_screenshot;
-  if (!base::Base64Encode(raw_bytes, &base64_screenshot)) {
-    response->SetError(new Error(
-        kUnknownError, "Encoding the PNG to base64 format failed"));
-    return;
-  }
-
-  response->SetValue(new StringValue(base64_screenshot));
-}
-
-}  // namespace webdriver