Remove DeviceLightEvent implementation

third_party/WebKit/public/BUILD.gn

 # 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.
 
 import("//build/buildflag_header.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 135 matching lines @@
     "platform/WebCrypto.h",
     "platform/WebCryptoAlgorithm.h",
     "platform/WebCryptoAlgorithmParams.h",
     "platform/WebCryptoKey.h",
     "platform/WebCryptoKeyAlgorithm.h",
     "platform/WebCryptoKeyAlgorithmParams.h",
     "platform/WebCursorInfo.h",
     "platform/WebData.h",
     "platform/WebDataConsumerHandle.h",
     "platform/WebDatabaseObserver.h",
-    "platform/WebDeviceLightListener.h",
     "platform/WebDisplayItemList.h",
     "platform/WebDisplayMode.h",
     "platform/WebDistillability.h",
     "platform/WebDocumentSubresourceFilter.h",
     "platform/WebDoublePoint.h",
     "platform/WebDoubleSize.h",
     "platform/WebDragData.h",
     "platform/WebDragOperation.h",
     "platform/WebEditingCommandType.h",
     "platform/WebEffectiveConnectionType.h",
@@ skipping 631 matching lines @@
 source_set("shared_typemap_traits") {
   visibility = [ ":*" ]
   sources = [
     "web/ConsoleMessageStructTraits.cpp",
     "web/ConsoleMessageStructTraits.h",
   ]
   deps = [
     ":mojo_bindings_shared__generator",
   ]
 }