Bug 1452080: Remove ComputedStyle::PresContext usage from layout and canvas code. r=xidorn

Couldn't find an easy way of splitting these up :(

MozReview-Commit-ID: 2kTZ5McREUT

layout/generic/nsImageFrame.cpp

@@ -487,7 +487,7 @@ nsImageFrame::ShouldCreateImageFrameFor(Element* aElement,
     // text).
     useSizedBox = true;
   }
-  else if (aComputedStyle->PresContext()->CompatibilityMode() !=
+  else if (aElement->OwnerDoc()->GetCompatibilityMode() !=
            eCompatibility_NavQuirks) {
     useSizedBox = false;
   }