This CL implements the first draft of Canvas 2D Context Attributes, aka getContext('2d', { alpha: f…

Source/core/html/canvas/Canvas2DContextAttributes.idl

Index: Source/core/html/canvas/Canvas2DContextAttributes.idl
diff --git a/Source/core/html/canvas/WebGLShaderPrecisionFormat.idl b/Source/core/html/canvas/Canvas2DContextAttributes.idl
similarity index 83%
copy from Source/core/html/canvas/WebGLShaderPrecisionFormat.idl
copy to Source/core/html/canvas/Canvas2DContextAttributes.idl
index b31a58d614047c672bf228793b3219a6d1cf81c2..f266a5786e04a06983bf8942b40918c456d096d7 100644
--- a/Source/core/html/canvas/WebGLShaderPrecisionFormat.idl
+++ b/Source/core/html/canvas/Canvas2DContextAttributes.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Google Inc. All rights reserved.
+ * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -24,12 +24,6 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-[
-    Conditional=WEBGL,
-    ImplementationLacksVTable
-] interface WebGLShaderPrecisionFormat {
-    readonly attribute long rangeMin;
-    readonly attribute long rangeMax;
-    readonly attribute long precision;
+[EnabledAtRuntime=experimentalCanvasFeatures] interface Canvas2DContextAttributes {
+    attribute boolean alpha;
 };
-