Remove all blimp client code.

blimp/client/core/session/cross_thread_network_event_observer.h

Index: blimp/client/core/session/cross_thread_network_event_observer.h
diff --git a/blimp/client/core/session/cross_thread_network_event_observer.h b/blimp/client/core/session/cross_thread_network_event_observer.h
deleted file mode 100644
index 77012e9da148f40349d16448c4e65f89fa74ff20..0000000000000000000000000000000000000000
--- a/blimp/client/core/session/cross_thread_network_event_observer.h
+++ /dev/null
@@ -1,42 +0,0 @@
-// 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_CORE_SESSION_CROSS_THREAD_NETWORK_EVENT_OBSERVER_H_
-#define BLIMP_CLIENT_CORE_SESSION_CROSS_THREAD_NETWORK_EVENT_OBSERVER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner.h"
-#include "blimp/client/core/session/network_event_observer.h"
-
-namespace blimp {
-namespace client {
-
-// Posts NetworkEvents to an observer across the IO/UI thread boundary.
-class CrossThreadNetworkEventObserver : public NetworkEventObserver {
- public:
-  CrossThreadNetworkEventObserver(
-      const base::WeakPtr<NetworkEventObserver>& target,
-      const scoped_refptr<base::SequencedTaskRunner>& task_runner);
-
-  ~CrossThreadNetworkEventObserver() override;
-
-  // NetworkEventObserver implementation.
-  void OnConnected() override;
-  void OnDisconnected(int result) override;
-
- private:
-  base::WeakPtr<NetworkEventObserver> target_;
-  scoped_refptr<base::SequencedTaskRunner> task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(CrossThreadNetworkEventObserver);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_CORE_SESSION_CROSS_THREAD_NETWORK_EVENT_OBSERVER_H_