Add drawImage() originClean() getSecurityOrigin() to OffscreenCanvas

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl

Index: third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
diff --git a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
index d559ea35b6cbd2b65cd48caae607c23ccea7d50e..68ce8de979d71a899f00aae5c2bc25ff471f0a87 100644
--- a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
+++ b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.idl
@@ -68,7 +68,7 @@ enum ImageSmoothingQuality {"low", "medium", "high"};
     attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle; // (default black)
     CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1);
     [RaisesException] CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1);
-    [CallWith=ScriptState, RaisesException] CanvasPattern? createPattern(CanvasImageSource image, [TreatNullAs=NullString] DOMString repetitionType);
+    [CallWith=ExecutionContext, RaisesException] CanvasPattern? createPattern(CanvasImageSource image, [TreatNullAs=NullString] DOMString repetitionType);
 
     // shadows
     attribute unrestricted double shadowOffsetX;
@@ -105,9 +105,9 @@ enum ImageSmoothingQuality {"low", "medium", "high"};
     TextMetrics measureText(DOMString text);
 
     // drawing images
-    [RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y);
-    [RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
-    [RaisesException] void drawImage(CanvasImageSource image, unrestricted double sx, unrestricted double sy, unrestricted double sw, unrestricted double sh, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh);
+    [CallWith=ExecutionContext, RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y);
+    [CallWith=ExecutionContext, RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
+    [CallWith=ExecutionContext, RaisesException] void drawImage(CanvasImageSource image, unrestricted double sx, unrestricted double sy, unrestricted double sw, unrestricted double sh, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh);
 
     // hit regions
     [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void addHitRegion(optional HitRegionOptions options);