Revert "Implement GpuArcVideoService for arc video accelerator"

content/public/browser/arc_video_host_delegate.h

Index: content/public/browser/arc_video_host_delegate.h
diff --git a/content/public/browser/arc_video_host_delegate.h b/content/public/browser/arc_video_host_delegate.h
deleted file mode 100644
index 08f54f8dca0feffd58dab781115e1b5f728e85aa..0000000000000000000000000000000000000000
--- a/content/public/browser/arc_video_host_delegate.h
+++ /dev/null
@@ -1,21 +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 CONTENT_PUBLIC_BROWSER_ARC_VIDEO_HOST_DELEGATE_H_
-#define CONTENT_PUBLIC_BROWSER_ARC_VIDEO_HOST_DELEGATE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "content/common/content_export.h"
-
-namespace arc {
-class VideoHostDelegate;
-}
-
-namespace content {
-
-CONTENT_EXPORT scoped_ptr<arc::VideoHostDelegate> CreateArcVideoHostDelegate();
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_BROWSER_ARC_VIDEO_HOST_DELEGATE_H_