Remove DeviceLightEvent implementation

third_party/WebKit/public/platform/WebDeviceLightListener.h

Index: third_party/WebKit/public/platform/WebDeviceLightListener.h
diff --git a/third_party/WebKit/public/platform/WebDeviceLightListener.h b/third_party/WebKit/public/platform/WebDeviceLightListener.h
deleted file mode 100644
index 24e6786813a87a7ce2555ade45ea3efbc98812d4..0000000000000000000000000000000000000000
--- a/third_party/WebKit/public/platform/WebDeviceLightListener.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2014 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 WebDeviceLightListener_h
-#define WebDeviceLightListener_h
-
-#include "WebPlatformEventListener.h"
-
-namespace blink {
-
-class WebDeviceLightListener : public WebPlatformEventListener {
- public:
-  // This method is called every time new device light data is available.
-  virtual void DidChangeDeviceLight(double) = 0;
-
-  virtual ~WebDeviceLightListener() {}
-};
-
-}  // namespace blink
-
-#endif  // WebDeviceLightListener_h