Remove DeviceLightEvent implementation

content/renderer/renderer_blink_platform_impl.h

 // Copyright (c) 2012 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_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 203 matching lines @@
 
   // Disables the WebSandboxSupport implementation for testing.
   // Tests that do not set up a full sandbox environment should call
   // SetSandboxEnabledForTesting(false) _before_ creating any instances
   // of this class, to ensure that we don't attempt to use sandbox-related
   // file descriptors or other resources.
   //
   // Returns the previous |enable| value.
   static bool SetSandboxEnabledForTesting(bool enable);
 
-  //  Set a double to return when setDeviceLightListener is invoked.
-  static void SetMockDeviceLightDataForTesting(double data);
   // Set MotionData to return when setDeviceMotionListener is invoked.
   static void SetMockDeviceMotionDataForTesting(const device::MotionData& data);
   // Set OrientationData to return when setDeviceOrientationListener
   // is invoked.
   static void SetMockDeviceOrientationDataForTesting(
       const device::OrientationData& data);
 
   WebDatabaseObserverImpl* web_database_observer_impl() {
     return web_database_observer_impl_.get();
   }
@@ skipping 71 matching lines @@
 
   // Only used when network service is enabled.
   mojom::URLLoaderFactoryPtr network_service_url_loader_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_