[Sensors] Return 'NotReadableError' exception if failed to find a sensor

third_party/WebKit/Source/modules/sensor/SensorProxy.cpp

Index: third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
diff --git a/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp b/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
index 226d9f7fabde0c646207577d81e715dd52dd257c..9fb52ad687eb5eb37acdfed54bcb74e71e354ac2 100644
--- a/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
+++ b/third_party/WebKit/Source/modules/sensor/SensorProxy.cpp
@@ -190,7 +190,8 @@ void SensorProxy::onSensorCreated(SensorInitParamsPtr params,
                                   SensorClientRequest clientRequest) {
   DCHECK_EQ(Initializing, m_state);
   if (!params) {
-    handleSensorError(NotFoundError, "Sensor is not present on the platform.");
+    handleSensorError(NotReadableError,
+                      "Sensor is not present on the platform.");
     return;
   }
   const size_t kReadBufferSize = sizeof(ReadingBuffer);