Add |notify_client_on_reading_change| flag to sensor configuration

device/generic_sensor/public/interfaces/sensor.mojom

Index: device/generic_sensor/public/interfaces/sensor.mojom
diff --git a/device/generic_sensor/public/interfaces/sensor.mojom b/device/generic_sensor/public/interfaces/sensor.mojom
index 533272a84bab4fa33d767f0b2e897cd8fe7ffc35..0b5bf36173c5b4ca7ccaddde58347f85134ff6be 100644
--- a/device/generic_sensor/public/interfaces/sensor.mojom
+++ b/device/generic_sensor/public/interfaces/sensor.mojom
@@ -40,6 +40,14 @@ struct SensorConfiguration {
   // Requested frequency in Hz.
   double frequency;
   // TODO(shalamov): Add map<string, union> for sensor specific configuration.
+
+  // For sensors with ON_CHANGE reporting mode:
+  // If true, SensorClient::SensorReadingChanged() signal is sent to the
+  // client; otherwise it is not.
+  // For sensors with CONTINUOUS reporting mode:
+  // This flag has no effect since SensorClient::SensorReadingChanged() is not
+  // sent to the client.
+  bool notify_client_on_reading_change = true;
 };
 
 // Interface for controlling the Sensor.