Remove all blimp client code.

blimp/client/core/contents/android/blimp_contents_observer_proxy.h

Index: blimp/client/core/contents/android/blimp_contents_observer_proxy.h
diff --git a/blimp/client/core/contents/android/blimp_contents_observer_proxy.h b/blimp/client/core/contents/android/blimp_contents_observer_proxy.h
deleted file mode 100644
index 2af55e1cf7435ae1ffc8506058675268b98c6439..0000000000000000000000000000000000000000
--- a/blimp/client/core/contents/android/blimp_contents_observer_proxy.h
+++ /dev/null
@@ -1,46 +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_CONTENTS_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_
-#define BLIMP_CLIENT_CORE_CONTENTS_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "blimp/client/core/contents/android/blimp_contents_impl_android.h"
-#include "blimp/client/core/contents/android/blimp_navigation_controller_impl_android.h"
-#include "blimp/client/public/contents/blimp_contents_observer.h"
-
-namespace blimp {
-namespace client {
-
-class BlimpContentsObserverProxy : public BlimpContentsObserver {
- public:
-  static bool RegisterJni(JNIEnv* env);
-
-  BlimpContentsObserverProxy(
-      JNIEnv* env,
-      jobject obj,
-      BlimpContentsImplAndroid* blimp_contents_impl_android);
-  ~BlimpContentsObserverProxy() override;
-
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
-
-  // BlimpContentsObserver implementation.
-  void OnNavigationStateChanged() override;
-  void OnLoadingStateChanged(bool loading) override;
-  void OnPageLoadingStateChanged(bool loading) override;
-
- private:
-  base::android::ScopedJavaGlobalRef<jobject> java_obj_;
-
-  BlimpContentsImplAndroid* blimp_contents_impl_android_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpContentsObserverProxy);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_CORE_CONTENTS_ANDROID_BLIMP_CONTENTS_OBSERVER_PROXY_H_