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

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/sensor/SensorProxy.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/sensor/SensorProviderProxy.h"
 #include "modules/sensor/SensorReadingUpdater.h"
@@ skipping 172 matching lines @@
   m_clientBinding.Close();
 
   for (Observer* observer : m_observers)
     observer->onSensorError(code, sanitizedMessage, unsanitizedMessage);
 }
 
 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);
 
   DCHECK_EQ(0u, params->buffer_offset % kReadBufferSize);
 
   m_mode = params->mode;
   m_defaultConfig = std::move(params->default_configuration);
   if (!m_defaultConfig) {
     handleSensorError();
@@ skipping 65 matching lines @@
   const device::OneWriterSeqLock& seqlock = buffer->seqlock.value();
   auto version = seqlock.ReadBegin();
   auto readingData = buffer->reading;
   if (seqlock.ReadRetry(version))
     return false;
   result = readingData;
   return true;
 }
 
 }  // namespace blink