Remove all blimp engine code

blimp/engine/app/blimp_engine_config.h

-// Copyright 2015 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.
-
-#ifndef BLIMP_ENGINE_APP_BLIMP_ENGINE_CONFIG_H_
-#define BLIMP_ENGINE_APP_BLIMP_ENGINE_CONFIG_H_
-
-#include <memory>
-#include <string>
-
-#include "base/macros.h"
-
-namespace base {
-class CommandLine;
-}  // namespace base
-
-namespace blimp {
-namespace engine {
-
-// Set internal command line switches for Blimp engine.
-void SetCommandLineDefaults(base::CommandLine* command_line);
-
-// Class to hold all of the configuration bits necessary for the Blimp engine.
-//
-// The BlimpEngineConfig class is initialized from parameters provided on the
-// command line. For the switches to pass verification:
-//   * A client token filepath must be provided and the file must have a
-//     non-empty token.
-//
-// The BlimpEngineConfig object is intended to live as long as the engine is
-// running. It should also be one of the first things to be set up.
-class BlimpEngineConfig {
- public:
-  ~BlimpEngineConfig();
-
-  // Attempts to create a BlimpEngineConfig based on the parameters in the
-  // specified CommandLine. This validates all of the command line switches and
-  // parses all files specified. Returns a non-null std::unique_ptr on success.
-  static std::unique_ptr<BlimpEngineConfig> Create(
-      const base::CommandLine& cmd_line);
-
-  // Creates a BlimpEngineConfig based on individual components. Should only
-  // be used for testing.
-  static std::unique_ptr<BlimpEngineConfig> CreateForTest(
-      const std::string& client_auth_token);
-
-  // Returns the client token.
-  const std::string& client_auth_token() const;
-
- private:
-  explicit BlimpEngineConfig(const std::string& client_auth_token);
-
-  const std::string client_auth_token_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpEngineConfig);
-};
-
-}  // namespace engine
-}  // namespace blimp
-
-#endif  // BLIMP_ENGINE_APP_BLIMP_ENGINE_CONFIG_H_