ImageCapture: Implement focus mode for Android and Fake Video Capture Devices

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 182 matching lines @@
     DVLOG(1) << __FUNCTION__;
     if (!m_serviceRequests.contains(resolver))
         return;
     if (capabilities.is_null()) {
         resolver->reject(DOMException::create(UnknownError, "platform error"));
     } else {
         // TODO(mcasas): Should be using a mojo::StructTraits.
         MediaSettingsRange* zoom = MediaSettingsRange::create(capabilities->zoom->max, capabilities->zoom->min, capabilities->zoom->current);
         PhotoCapabilities* caps = PhotoCapabilities::create();
         caps->setZoom(zoom);
+        switch (capabilities->focus_mode) {
+        case media::mojom::blink::FocusMode::UNAVAILABLE:
+            caps->setFocusMode(PhotoCapabilities::FocusMode::Unavailable);
+            break;
+        case media::mojom::blink::FocusMode::AUTO:
+            caps->setFocusMode(PhotoCapabilities::FocusMode::Auto);
+            break;
+        case media::mojom::blink::FocusMode::MANUAL:
+            caps->setFocusMode(PhotoCapabilities::FocusMode::Manual);
+            break;
+        default:
+            NOTREACHED();
+        }
         resolver->resolve(caps);
     }
     m_serviceRequests.remove(resolver);
 }
 
 void ImageCapture::onSetOptions(ScriptPromiseResolver* resolver, bool result)
 {
     if (!m_serviceRequests.contains(resolver))
         return;
 
@@ skipping 28 matching lines @@
 
 DEFINE_TRACE(ImageCapture)
 {
     visitor->trace(m_streamTrack);
     visitor->trace(m_serviceRequests);
     EventTargetWithInlineData::trace(visitor);
     ContextLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink