[DeviceLight API] Content Side

content/browser/device_orientation/device_inertial_sensor_service.cc

Index: content/browser/device_orientation/device_inertial_sensor_service.cc
diff --git a/content/browser/device_orientation/device_inertial_sensor_service.cc b/content/browser/device_orientation/device_inertial_sensor_service.cc
index cb8bbf300b29226ec269a152f31ad80239dc143b..20608203c40a9650a8693a990cbed858abf3a94c 100644
--- a/content/browser/device_orientation/device_inertial_sensor_service.cc
+++ b/content/browser/device_orientation/device_inertial_sensor_service.cc
@@ -13,7 +13,8 @@
 namespace content {
 
 DeviceInertialSensorService::DeviceInertialSensorService()
-    : num_motion_readers_(0),
+    : num_light_readers_(0),
+      num_motion_readers_(0),
       num_orientation_readers_(0),
       is_shutdown_(false) {
 }
@@ -52,13 +53,17 @@ bool DeviceInertialSensorService::ChangeNumberConsumers(
     return false;
 
   switch (consumer_type) {
+    case CONSUMER_TYPE_LIGHT:
+      num_light_readers_ += delta;
+      DCHECK_GE(num_light_readers_ , 0);
+      return true;
     case CONSUMER_TYPE_MOTION:
       num_motion_readers_ += delta;
-      DCHECK(num_motion_readers_ >= 0);
+      DCHECK_GE(num_motion_readers_ , 0);
       return true;
     case CONSUMER_TYPE_ORIENTATION:
       num_orientation_readers_ += delta;
-      DCHECK(num_orientation_readers_ >= 0);
+      DCHECK_GE(num_orientation_readers_ , 0);
       return true;
     default:
       NOTREACHED();
@@ -69,6 +74,8 @@ bool DeviceInertialSensorService::ChangeNumberConsumers(
 int DeviceInertialSensorService::GetNumberConsumers(
     ConsumerType consumer_type) const {
   switch (consumer_type) {
+    case CONSUMER_TYPE_LIGHT:
+      return num_light_readers_;
     case CONSUMER_TYPE_MOTION:
       return num_motion_readers_;
     case CONSUMER_TYPE_ORIENTATION: