diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
index e74ccb4c5d0..666a5c638e8 100644
--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -5070,49 +5070,6 @@ DrawImageInternal(nsRenderingContext*    aRenderingContext,
   return NS_OK;
 }
 
-/* static */ void
-nsLayoutUtils::DrawPixelSnapped(nsRenderingContext* aRenderingContext,
-                                nsPresContext*       aPresContext,
-                                gfxDrawable*         aDrawable,
-                                GraphicsFilter       aFilter,
-                                const nsRect&        aDest,
-                                const nsRect&        aFill,
-                                const nsPoint&       aAnchor,
-                                const nsRect&        aDirty)
-{
-  int32_t appUnitsPerDevPixel =
-    aPresContext->AppUnitsPerDevPixel();
-  gfxContext* ctx = aRenderingContext->ThebesContext();
-  gfxIntSize drawableSize = aDrawable->Size();
-  nsIntSize imageSize(drawableSize.width, drawableSize.height);
-
-  SnappedImageDrawingParameters drawingParams =
-    ComputeSnappedImageDrawingParameters(ctx, appUnitsPerDevPixel, aDest, aFill,
-                                         aAnchor, aDirty, imageSize);
-
-  if (!drawingParams.mShouldDraw)
-    return;
-
-  gfxContextMatrixAutoSaveRestore saveMatrix(ctx);
-  if (drawingParams.mResetCTM) {
-    ctx->IdentityMatrix();
-  }
-
-  gfxRect sourceRect =
-    drawingParams.mUserSpaceToImageSpace.Transform(drawingParams.mFillRect);
-  gfxRect imageRect(0, 0, imageSize.width, imageSize.height);
-  gfxRect subimage(drawingParams.mSubimage.x, drawingParams.mSubimage.y,
-                   drawingParams.mSubimage.width, drawingParams.mSubimage.height);
-
-  NS_ASSERTION(!sourceRect.Intersect(subimage).IsEmpty(),
-               "We must be allowed to sample *some* source pixels!");
-
-  gfxUtils::DrawPixelSnapped(ctx, aDrawable,
-                             drawingParams.mUserSpaceToImageSpace, subimage,
-                             sourceRect, imageRect, drawingParams.mFillRect,
-                             gfx::SurfaceFormat::B8G8R8A8, aFilter);
-}
-
 /* static */ nsresult
 nsLayoutUtils::DrawSingleUnscaledImage(nsRenderingContext* aRenderingContext,
                                        nsPresContext*       aPresContext,
diff --git a/layout/base/nsLayoutUtils.h b/layout/base/nsLayoutUtils.h
index 6e65aba22cb..3d484db85f1 100644
--- a/layout/base/nsLayoutUtils.h
+++ b/layout/base/nsLayoutUtils.h
@@ -1494,30 +1494,6 @@ public:
   static gfxRect RectToGfxRect(const nsRect& aRect,
                                int32_t aAppUnitsPerDevPixel);
 
-  /**
-   * Draw a drawable using the pixel snapping algorithm.
-   * See https://wiki.mozilla.org/Gecko:Image_Snapping_and_Rendering
-   *   @param aRenderingContext Where to draw the image, set up with an
-   *                            appropriate scale and transform for drawing in
-   *                            app units.
-   *   @param aDrawable         The drawable we want to draw.
-   *   @param aFilter           The graphics filter we should draw with.
-   *   @param aDest             Where one copy of the image should mapped to.
-   *   @param aFill             The area to be filled with copies of the
-   *                            image.
-   *   @param aAnchor           A point in aFill which we will ensure is
-   *                            pixel-aligned in the output.
-   *   @param aDirty            Pixels outside this area may be skipped.
-   */
-  static void DrawPixelSnapped(nsRenderingContext* aRenderingContext,
-                               nsPresContext*       aPresContext,
-                               gfxDrawable*         aDrawable,
-                               GraphicsFilter       aFilter,
-                               const nsRect&        aDest,
-                               const nsRect&        aFill,
-                               const nsPoint&       aAnchor,
-                               const nsRect&        aDirty);
-
   /**
    * Draw a whole image without scaling or tiling.
    *