Revert of [Sensors] Align sensor reading updates and 'onchange' notification with rAF.

third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js

Index: third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
diff --git a/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js b/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
index 52d878d21b22f559e103853e9c8c7a3575ff5eb2..ee5f312333cceab119156d79549531e72f380954 100644
--- a/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
+++ b/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
@@ -304,10 +304,7 @@
                 // By the moment slow sensor (9 Hz) is notified for the
                 // next time, the fast sensor (30 Hz) has been notified
                 // for int(30/9) = 3 times.
-                // In actual implementation updates are bound to rAF,
-                // (not to a timer) sometimes fast sensor gets invoked 4 times.
-                assert_true(fastSensorNotifiedCounter == 3 ||
-                            fastSensorNotifiedCounter == 4);
+                assert_equals(fastSensorNotifiedCounter, 3);
                 fastSensor.stop();
                 slowSensor.stop();
                 resolve(mockSensor);