Remove DeviceLightEvent implementation

device/sensors/data_fetcher_shared_memory_default.cc

 // 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.
 
 #include "device/sensors/data_fetcher_shared_memory.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 
 namespace {
@@ skipping 10 matching lines @@
 bool SetOrientationBuffer(device::DeviceOrientationHardwareBuffer* buffer,
                           bool enabled) {
   if (!buffer)
     return false;
   buffer->seqlock.WriteBegin();
   buffer->data.all_available_sensors_are_active = enabled;
   buffer->seqlock.WriteEnd();
   return true;
 }
 
-bool SetLightBuffer(device::DeviceLightHardwareBuffer* buffer, double lux) {
-  if (!buffer)
-    return false;
-  buffer->seqlock.WriteBegin();
-  buffer->data.value = lux;
-  buffer->seqlock.WriteEnd();
-  return true;
-}
-
 }  // namespace
 
 namespace device {
 
 DataFetcherSharedMemory::DataFetcherSharedMemory() {}
 
 DataFetcherSharedMemory::~DataFetcherSharedMemory() {}
 
 bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) {
   DCHECK(buffer);
 
   switch (consumer_type) {
     case CONSUMER_TYPE_MOTION:
       motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer);
       UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionDefaultAvailable", false);
       return SetMotionBuffer(motion_buffer_, true);
     case CONSUMER_TYPE_ORIENTATION:
       orientation_buffer_ =
           static_cast<DeviceOrientationHardwareBuffer*>(buffer);
       UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationDefaultAvailable",
                             false);
       return SetOrientationBuffer(orientation_buffer_, true);
     case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
       orientation_absolute_buffer_ =
           static_cast<DeviceOrientationHardwareBuffer*>(buffer);
       return SetOrientationBuffer(orientation_absolute_buffer_, true);
-    case CONSUMER_TYPE_LIGHT:
-      light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer);
-      return SetLightBuffer(light_buffer_,
-                            std::numeric_limits<double>::infinity());
     default:
       NOTREACHED();
   }
   return false;
 }
 
 bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
   switch (consumer_type) {
     case CONSUMER_TYPE_MOTION:
       return SetMotionBuffer(motion_buffer_, false);
     case CONSUMER_TYPE_ORIENTATION:
       return SetOrientationBuffer(orientation_buffer_, false);
     case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
       return SetOrientationBuffer(orientation_absolute_buffer_, false);
-    case CONSUMER_TYPE_LIGHT:
-      return SetLightBuffer(light_buffer_, -1);
     default:
       NOTREACHED();
   }
   return false;
 }
 
 }  // namespace device