ImageCapture: support enhanced FocusMode getting/setting

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 106 matching lines @@
     media::mojom::blink::PhotoSettingsPtr settings = media::mojom::blink::PhotoSettings::New();
     settings->has_zoom = photoSettings.hasZoom();
     if (settings->has_zoom)
         settings->zoom = photoSettings.zoom();
     settings->has_height = photoSettings.hasImageHeight();
     if (settings->has_height)
         settings->height = photoSettings.imageHeight();
     settings->has_width = photoSettings.hasImageWidth();
     if (settings->has_width)
         settings->width = photoSettings.imageWidth();
+    settings->has_focus_mode = photoSettings.hasFocusMode();
+    if (settings->has_focus_mode) {
+        if (photoSettings.focusMode() == "manual")
+            settings->focus_mode = media::mojom::blink::FocusMode::MANUAL;
+        else if (photoSettings.focusMode() == "single-shot")
+            settings->focus_mode = media::mojom::blink::FocusMode::SINGLE_SHOT;
+        else if (photoSettings.focusMode() == "continuous")
+            settings->focus_mode = media::mojom::blink::FocusMode::CONTINUOUS;
+        else
+            settings->has_focus_mode = false;
+    }
 
     m_service->SetOptions(m_streamTrack->component()->source()->id(), std::move(settings), convertToBaseCallback(WTF::bind(&ImageCapture::onSetOptions, wrapPersistent(this), wrapPersistent(resolver))));
     return promise;
 }
 
 
 ScriptPromise ImageCapture::takePhoto(ScriptState* scriptState, ExceptionState& exceptionState)
 {
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
@@ skipping 116 matching lines @@
 
 DEFINE_TRACE(ImageCapture)
 {
     visitor->trace(m_streamTrack);
     visitor->trace(m_serviceRequests);
     EventTargetWithInlineData::trace(visitor);
     ContextLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink