diff --git a/layout/generic/nsHTMLCanvasFrame.cpp b/layout/generic/nsHTMLCanvasFrame.cpp
index f558208ad7ab..f46273eaba05 100644
--- a/layout/generic/nsHTMLCanvasFrame.cpp
+++ b/layout/generic/nsHTMLCanvasFrame.cpp
@@ -39,13 +39,9 @@ using namespace mozilla::gfx;
  */
 static IntrinsicSize IntrinsicSizeFromCanvasSize(
     const nsIntSize& aCanvasSizeInPx) {
-  IntrinsicSize intrinsicSize;
-  intrinsicSize.width.SetCoordValue(
-      nsPresContext::CSSPixelsToAppUnits(aCanvasSizeInPx.width));
-  intrinsicSize.height.SetCoordValue(
+  return IntrinsicSize(
+      nsPresContext::CSSPixelsToAppUnits(aCanvasSizeInPx.width),
       nsPresContext::CSSPixelsToAppUnits(aCanvasSizeInPx.height));
-
-  return intrinsicSize;
 }
 
 /* Helper for our nsIFrame::GetIntrinsicRatio() impl. Takes the result of
diff --git a/layout/generic/nsIFrame.h b/layout/generic/nsIFrame.h
index b6d9e34ae959..11f744acc82a 100644
--- a/layout/generic/nsIFrame.h
+++ b/layout/generic/nsIFrame.h
@@ -476,6 +476,10 @@ struct IntrinsicSize {
   nsStyleCoord width, height;
 
   IntrinsicSize() : width(eStyleUnit_None), height(eStyleUnit_None) {}
+  IntrinsicSize(nscoord aWidth, nscoord aHeight)
+      : width(aWidth, nsStyleCoord::CoordConstructor),
+        height(aHeight, nsStyleCoord::CoordConstructor) {}
+
   IntrinsicSize(const IntrinsicSize& rhs)
       : width(rhs.width), height(rhs.height) {}
   IntrinsicSize& operator=(const IntrinsicSize& rhs) {
diff --git a/layout/generic/nsVideoFrame.cpp b/layout/generic/nsVideoFrame.cpp
index 9577ad7ba285..a0e260867a94 100644
--- a/layout/generic/nsVideoFrame.cpp
+++ b/layout/generic/nsVideoFrame.cpp
@@ -191,9 +191,7 @@ already_AddRefed<Layer> nsVideoFrame::BuildLayer(
   // can pass to ComputeObjectRenderRect.
   nsSize aspectRatio(nsPresContext::CSSPixelsToAppUnits(videoSizeInPx.width),
                      nsPresContext::CSSPixelsToAppUnits(videoSizeInPx.height));
-  IntrinsicSize intrinsicSize;
-  intrinsicSize.width.SetCoordValue(aspectRatio.width);
-  intrinsicSize.height.SetCoordValue(aspectRatio.height);
+  IntrinsicSize intrinsicSize(aspectRatio.width, aspectRatio.height);
 
   nsRect dest = nsLayoutUtils::ComputeObjectDestRect(
       area, intrinsicSize, aspectRatio, StylePosition());
@@ -436,9 +434,7 @@ class nsDisplayVideo : public nsDisplayItem {
     nsSize aspectRatio(
         nsPresContext::CSSPixelsToAppUnits(videoSizeInPx.width),
         nsPresContext::CSSPixelsToAppUnits(videoSizeInPx.height));
-    IntrinsicSize intrinsicSize;
-    intrinsicSize.width.SetCoordValue(aspectRatio.width);
-    intrinsicSize.height.SetCoordValue(aspectRatio.height);
+    IntrinsicSize intrinsicSize(aspectRatio.width, aspectRatio.height);
 
     nsRect dest = nsLayoutUtils::ComputeObjectDestRect(
         area, intrinsicSize, aspectRatio, Frame()->StylePosition());
@@ -574,10 +570,7 @@ LogicalSize nsVideoFrame::ComputeSize(
   }
 
   nsSize size = GetVideoIntrinsicSize(aRenderingContext);
-
-  IntrinsicSize intrinsicSize;
-  intrinsicSize.width.SetCoordValue(size.width);
-  intrinsicSize.height.SetCoordValue(size.height);
+  IntrinsicSize intrinsicSize(size.width, size.height);
 
   // Only video elements have an intrinsic ratio.
   nsSize intrinsicRatio = HasVideoElement() ? size : nsSize(0, 0);