Remove all blimp client code.

blimp/client/core/contents/mock_ime_feature_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_CORE_CONTENTS_MOCK_IME_FEATURE_DELEGATE_H_
-#define BLIMP_CLIENT_CORE_CONTENTS_MOCK_IME_FEATURE_DELEGATE_H_
-
-#include "blimp/client/core/contents/ime_feature.h"
-
-#include <string>
-
-#include "testing/gmock/include/gmock/gmock.h"
-
-namespace blimp {
-namespace client {
-
-class MockImeFeatureDelegate : public client::ImeFeature::Delegate {
- public:
-  MockImeFeatureDelegate();
-  ~MockImeFeatureDelegate() override;
-
-  MOCK_METHOD1(OnShowImeRequested,
-               void(const ImeFeature::WebInputRequest& request));
-  MOCK_METHOD0(OnHideImeRequested, void());
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_CORE_CONTENTS_MOCK_IME_FEATURE_DELEGATE_H_