Remove all blimp client code.

blimp/client/public/blimp_client_context_delegate.h

-// Copyright 2016 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_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
-#define BLIMP_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
-
-#include "base/macros.h"
-#include "blimp/client/public/session/assignment.h"
-
-class IdentityProvider;
-class GoogleServiceAuthError;
-
-namespace blimp {
-namespace client {
-class BlimpContents;
-
-// BlimpClientContextDelegate is how the BlimpClientContext gets the
-// functionality it needs from its embedder.
-class BlimpClientContextDelegate {
- public:
-  virtual ~BlimpClientContextDelegate() = default;
-
-  // Attaches any required base::SupportsUserData::Data to the BlimpContents.
-  virtual void AttachBlimpContentsHelpers(BlimpContents* blimp_contents) = 0;
-
-  // Called whenever an assignment request has finished and the resulting
-  // Assignment is ready to be used in an attempt to connect to the engine. The
-  // |result| is the result for the assignment request itself, not for the
-  // connection attempt. Only when |result| is ASSIGNMENT_REQUEST_RESULT_OK
-  // will an attempt actually be made to connect to the engine using the
-  // Assignment.
-  virtual void OnAssignmentConnectionAttempted(
-      AssignmentRequestResult result,
-      const Assignment& assignment) = 0;
-
-  // Create IdentityProvider for OAuth2 token retrieval, used in Authenticator.
-  virtual std::unique_ptr<IdentityProvider> CreateIdentityProvider() = 0;
-
-  // Propagate authentication error to the embedder.
-  virtual void OnAuthenticationError(const GoogleServiceAuthError& error) = 0;
-
-  // Called when the client is connected to the engine.
-  virtual void OnConnected() = 0;
-
-  // Called when the client is disconnected from the engine.
-  // See EndConnectionMessage::Reason.
-  virtual void OnEngineDisconnected(int result) = 0;
-
-  // Called when the network is disconnected.
-  // See /net/base/net_errors.h.
-  virtual void OnNetworkDisconnected(int result) = 0;
-
- protected:
-  BlimpClientContextDelegate() = default;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(BlimpClientContextDelegate);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_DELEGATE_H_