Basic use implementation for MediaStream from Canvas: captureStream()

third_party/WebKit/Source/platform/exported/WebSkImage.cpp

Index: third_party/WebKit/Source/platform/exported/WebSkImage.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebSkImage.cpp b/third_party/WebKit/Source/platform/exported/WebSkImage.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ad6bc6b0454a9d50685ac2a3337a423a22f50974
--- /dev/null
+++ b/third_party/WebKit/Source/platform/exported/WebSkImage.cpp
@@ -0,0 +1,56 @@
+// Copyright 2015 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 "config.h"
+#include "public/platform/WebSkImage.h"
+
+#include "wtf/PassRefPtr.h"
+
+namespace blink {
+
+WebSkImage::WebSkImage()
+{
+}
+
+WebSkImage::WebSkImage(const WebSkImage& image)
+{
+    m_image = image.m_image;
+}
+
+WebSkImage::~WebSkImage()
+{
+    m_image.reset();
+}
+
+int WebSkImage::width() const
+{
+    return m_image->width();
+}
+
+int WebSkImage::height() const
+{
+    return m_image->height();
+}
+
+bool WebSkImage::readPixels(const SkImageInfo& dstInfo,
+    void* dstPixels,
+    size_t dstRowBytes,
+    int srcX,
+    int srcY) const
+{
+    return m_image->readPixels(dstInfo, dstPixels, dstRowBytes, srcX, srcY);
+}
+
+WebSkImage::WebSkImage(const PassRefPtr<SkImage>& image)
+    : m_image(image)
+{
+}
+
+WebSkImage& WebSkImage::operator=(const WTF::PassRefPtr<SkImage>& image)
+{
+    m_image = image;
+    return *this;
+}
+
+} // namespace blink