Use union type in ImageBitmapFactories.idl

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLVideoElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLVideoElement.cpp b/third_party/WebKit/Source/core/html/HTMLVideoElement.cpp
index fe5170644016ab7a1e42efe73e22ff1a051996b1..1668a4af2fe35662263c9cd6f4e94fdd24111a53 100644
--- a/third_party/WebKit/Source/core/html/HTMLVideoElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLVideoElement.cpp
@@ -34,6 +34,7 @@
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/Fullscreen.h"
 #include "core/dom/shadow/ShadowRoot.h"
+#include "core/frame/ImageBitmap.h"
 #include "core/frame/Settings.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/layout/LayoutImage.h"
@@ -320,4 +321,37 @@ FloatSize HTMLVideoElement::elementSize() const
     return FloatSize(videoWidth(), videoHeight());
 }
 
+IntSize HTMLVideoElement::bitmapSourceSize()
+{
+    return IntSize(videoWidth(), videoHeight());
+}
+
+PassRefPtrWillBeRawPtr<ImageBitmap> HTMLVideoElement::createImageBitmap(EventTarget& eventTarget, ImageBitmapSource* bitmapSource, int sx, int sy, int sw, int sh, ExceptionState& exceptionState)
+{
+    ASSERT(eventTarget.toDOMWindow());
+    HTMLVideoElement* video = static_cast<HTMLVideoElement*>(bitmapSource);
+    if (video->networkState() == HTMLMediaElement::NETWORK_EMPTY) {
+        exceptionState.throwDOMException(InvalidStateError, "The provided element has not retrieved data.");
+        return nullptr;
+    }
+    if (video->readyState() <= HTMLMediaElement::HAVE_METADATA) {
+        exceptionState.throwDOMException(InvalidStateError, "The provided element's player has no current data.");
+        return nullptr;
+    }
+    if (!sw || !sh) {
+        exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
+        return nullptr;
+    }
+    if (!video->hasSingleSecurityOrigin()) {
+        exceptionState.throwSecurityError("The source video contains image data from multiple origins.");
+        return nullptr;
+    }
+    if (!video->webMediaPlayer()->didPassCORSAccessCheck()
+        && eventTarget.toDOMWindow()->document()->securityOrigin()->taintsCanvas(video->currentSrc())) {
+        exceptionState.throwSecurityError("Cross-origin access to the source video is denied.");
+        return nullptr;
+    }
+    return ImageBitmap::create(video, IntRect(sx, sy, sw, sh));
+}
+
 } // namespace blink