Image Capture: add |supports_torch| field to mojom

third_party/WebKit/Source/modules/imagecapture/ImageCapture.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/imagecapture/ImageCapture.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 546 matching lines @@
     m_capabilities.setSharpness(
         MediaSettingsRange::create(*capabilities.sharpness));
     m_settings.setSharpness(capabilities.sharpness->current);
   }
 
   if (capabilities.zoom->max != capabilities.zoom->min) {
     m_capabilities.setZoom(MediaSettingsRange::create(*capabilities.zoom));
     m_settings.setZoom(capabilities.zoom->current);
   }
 
-  m_capabilities.setTorch(capabilities.torch);
-
-  // TODO(mcasas): do |torch| when the mojom interface is updated,
-  // https://crbug.com/700607.
+  m_capabilities.setTorch(capabilities.supports_torch);
+  if (capabilities.supports_torch)
+    m_settings.setTorch(capabilities.torch);
 }
 
 void ImageCapture::onServiceConnectionError() {
   m_service.reset();
   for (ScriptPromiseResolver* resolver : m_serviceRequests)
     resolver->reject(DOMException::create(NotFoundError, kNoServiceError));
   m_serviceRequests.clear();
 }
 
 DEFINE_TRACE(ImageCapture) {
   visitor->trace(m_streamTrack);
   visitor->trace(m_capabilities);
   visitor->trace(m_settings);
   visitor->trace(m_currentConstraints);
   visitor->trace(m_serviceRequests);
   EventTargetWithInlineData::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink