Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

core/imagebitmap/ImageBitmapOptions.idl

Index: core/imagebitmap/ImageBitmapOptions.idl
diff --git a/core/imagebitmap/ImageBitmapOptions.idl b/core/imagebitmap/ImageBitmapOptions.idl
new file mode 100644
index 0000000000000000000000000000000000000000..e8c231da6f035c1deacb05da41093dc4e0398538
--- /dev/null
+++ b/core/imagebitmap/ImageBitmapOptions.idl
@@ -0,0 +1,10 @@
+// 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.
+
+[RuntimeEnabled=ExperimentalCanvasFeatures] enum ImageOrientation { "none", "flipY" };
+[RuntimeEnabled=ExperimentalCanvasFeatures] enum PremultiplyAlpha { "none", "default" };
+dictionary ImageBitmapOptions {
+    [RuntimeEnabled=ExperimentalCanvasFeatures] PremultiplyAlpha premultiplyAlpha = "default";
+    [RuntimeEnabled=ExperimentalCanvasFeatures] ImageOrientation imageOrientation = "none";
+};