Revert of Adding CopresenceState

components/copresence/copresence_state_impl.h

Index: components/copresence/copresence_state_impl.h
diff --git a/components/copresence/copresence_state_impl.h b/components/copresence/copresence_state_impl.h
deleted file mode 100644
index 2a941bf4105ca41c331ed808ded42e9cb920b3ae..0000000000000000000000000000000000000000
--- a/components/copresence/copresence_state_impl.h
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2014 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 COMPONENTS_COPRESENCE_COPRESENCE_STATE_IMPL_H_
-#define COMPONENTS_COPRESENCE_COPRESENCE_STATE_IMPL_H_
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "components/copresence/proto/enums.pb.h"
-#include "components/copresence/public/copresence_state.h"
-
-namespace copresence {
-
-class Directive;
-struct AudioToken;
-struct ReceivedToken;
-struct TransmittedToken;
-
-// This class tracks the internal state of the copresence component
-// for debugging purposes. CopresenceState only allows observation,
-// but this class accepts updates from elsewhere in the component.
-class CopresenceStateImpl final : public CopresenceState {
- public:
-  CopresenceStateImpl();
-  ~CopresenceStateImpl() override;
-
-  // CopresenceState overrides.
-  void AddObserver(CopresenceObserver* observer) override;
-  void RemoveObserver(CopresenceObserver* observer) override;
-  const std::vector<Directive>& active_directives() const override;
-  const std::map<std::string, TransmittedToken>&
-  transmitted_tokens() const override;
-  const std::map<std::string, ReceivedToken>&
-  received_tokens() const override;
-
-  // Update the current active directives.
-  void UpdateDirectives(const std::vector<Directive>& directives);
-
-  // Report transmitting a token.
-  void UpdateTransmittedToken(const TransmittedToken& token);
-
-  // Report receiving a token.
-  void UpdateReceivedToken(const ReceivedToken& token);
-
-  // Report the token state from the server.
-  void UpdateTokenStatus(const std::string& token_id, TokenStatus status);
-
- private:
-  // Reconcile the |active_directives_| against |transmitted_tokens_|.
-  void UpdateTransmittingTokens();
-
-  std::vector<Directive> active_directives_;
-
-  // TODO(ckehoe): When we support more mediums, separate tokens by medium.
-  // Otherwise tokens from different mediums could overwrite each other.
-  // TODO(ckehoe): Limit the number of tokens stored.
-  std::map<std::string, TransmittedToken> transmitted_tokens_;
-  std::map<std::string, ReceivedToken> received_tokens_;
-
-  ObserverList<CopresenceObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(CopresenceStateImpl);
-};
-
-}  // namespace copresence
-
-#endif  // COMPONENTS_COPRESENCE_COPRESENCE_STATE_IMPL_H_