Image Capture: Reject applyConstraints() if passed an unsupported constraint

third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html

Index: third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html
diff --git a/third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html b/third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html
index cfbb98545f88382b7e2652e99d60ef86d629eab0..6fa0060b9fbd8fea360dc7344e2d4d3ced09f2a5 100644
--- a/third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html
+++ b/third_party/WebKit/LayoutTests/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html
@@ -52,6 +52,13 @@ async_test(function(t) {
       var stream = canvas.captureStream();
       videoTrack = stream.getVideoTracks()[0];
 
+      // |videoTrack|s capabilities, just like the actual capture, is a process
+      // kicked right after creation, we introduce a small delay to allow for

[Reilly Grant (use Gerrit), 2017/04/14 19:46:17]

same here

[mcasas, 2017/04/14 21:21:27]

Done.

+      // those to be collected.
+      // TODO(mcasas): this shouldn't be needed, https://crbug.com/711524.
+      return new Promise((resolve) => setTimeout(resolve, 100));
+    })
+    .then(function() {
       return videoTrack.applyConstraints(constraints);
     })
     .then(function() {