Increase device orientation event frequency to 60 Hz. Change constants

content/browser/device_sensors/inertial_sensor_consts.h

Index: content/browser/device_sensors/inertial_sensor_consts.h
diff --git a/content/browser/device_sensors/inertial_sensor_consts.h b/content/browser/device_sensors/inertial_sensor_consts.h
index da099ad0c0070889e2f84f8473a95507fa11a7f2..c8d34f7a9e01024a426acd31d03acaa86949a9d0 100644
--- a/content/browser/device_sensors/inertial_sensor_consts.h
+++ b/content/browser/device_sensors/inertial_sensor_consts.h
@@ -5,6 +5,9 @@
 #ifndef CONTENT_BROWSER_DEVICE_SENSORS_INERTIAL_SENSOR_CONSTS_H_
 #define CONTENT_BROWSER_DEVICE_SENSORS_INERTIAL_SENSOR_CONSTS_H_
 
+#include "base/basictypes.h"
+#include "base/time/time.h"
+
 namespace content {
 
 // Constants related to the Device {Motion|Orientation|Light} APIs.
@@ -15,14 +18,18 @@ enum ConsumerType {
   CONSUMER_TYPE_LIGHT = 1 << 2,
 };
 
-// Specifies the minimal interval between subsequent sensor data updates.
+// Specifies the sampling rate for sensor data updates.
 // Note that when changing this value it is desirable to have an adequate
-// matching value |DeviceSensorEventPump::kDefaultPumpDelayMillis| in
-// content/renderer/device_sensors/device_sensor_event_pump.cc.
-const int kInertialSensorIntervalMillis = 50;
-// Corresponding |kDefaultLightPumpDelayMillis| is in
+// matching value |DeviceSensorEventPump::kDefaultPumpFrequencyHz| in
+// content/renderer/device_orientation/device_sensor_event_pump.cc.
+const int64 kInertialSensorSamplingRateHz = 60;
+const int64 kInertialSensorIntervalMicroseconds =
+    base::Time::kMicrosecondsPerSecond / kInertialSensorSamplingRateHz;

[timvolodine, 2014/09/26 13:09:16]

nit: maybe insert whiteline here, otherwise looks very dense.

[jdarpinian, 2014/09/26 23:40:48]

Done.

+// Corresponding |kDefaultLightPumpFrequencyHz| is in
 // content/renderer/device_sensors/device_light_event_pump.cc.
-const int kLightSensorIntervalMillis = 200;
+const int64 kLightSensorSamplingRateHz = 5;
+const int64 kLightSensorIntervalMicroseconds =
+    base::Time::kMicrosecondsPerSecond / kLightSensorSamplingRateHz;
 
 }  // namespace content