Bug 1011574 - Throw the right exception when putImageData is passed an ImageData with a neutered buffer. r=bjacob

content/canvas/src/CanvasRenderingContext2D.cpp

@@ -4046,7 +4046,7 @@ CanvasRenderingContext2D::PutImageData_explicit(int32_t x, int32_t y, uint32_t w
                                                 int32_t dirtyWidth, int32_t dirtyHeight)
 {
   if (w == 0 || h == 0) {
-    return NS_ERROR_DOM_SYNTAX_ERR;
+    return NS_ERROR_DOM_INVALID_STATE_ERR;
   }
 
   IntRect dirtyRect;
@@ -4100,7 +4100,7 @@ CanvasRenderingContext2D::PutImageData_explicit(int32_t x, int32_t y, uint32_t w
 
   uint32_t len = w * h * 4;
   if (dataLen != len) {
-    return NS_ERROR_DOM_SYNTAX_ERR;
+    return NS_ERROR_DOM_INVALID_STATE_ERR;
   }
 
   nsRefPtr<gfxImageSurface> imgsurf = new gfxImageSurface(gfxIntSize(w, h),