ImageCapture: Implement takePhoto() for Windows

media/capture/video/blob_utils.h

Index: media/capture/video/blob_utils.h
diff --git a/media/capture/video/blob_utils.h b/media/capture/video/blob_utils.h
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index 0000000000000000000000000000000000000000..edf534727d849a66cd0d8a6079e75ea51240b8ae
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+++ b/media/capture/video/blob_utils.h
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+// 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.
+
+#ifndef MEDIA_CAPTURE_VIDEO_BLOB_UTILS_H_
+#define MEDIA_CAPTURE_VIDEO_BLOB_UTILS_H_
+
+#include "media/mojo/interfaces/image_capture.mojom.h"
+
+namespace media {
+
+struct VideoCaptureFormat;
+
+// Helper method to create a mojom::Blob out of |buffer|, whose pixel format and
+// resolution are taken from |capture_format|. Returns a null BlobPtr in case of
+// error.
+mojom::BlobPtr Blobify(const uint8_t* buffer,
+                       const uint32_t bytesused,
+                       const VideoCaptureFormat& capture_format);
+
+}  // namespace media
+
+#endif  // MEDIA_CAPTURE_VIDEO_BLOB_UTILS_H_