Issue #1916 - Part 3: Sticky/relative position fixes in nsTableWrapperFrame.

Backported from Mozilla bug 1472602.
Didn't include the change in StickyScrollContainer.cpp because it breaks
 linking to libxul.so in the end. It's not important anyway.

1 files changed, 2 insertions, 1 deletions

diff --git a/layout/tables/nsTableWrapperFrame.cpp b/layout/tables/nsTableWrapperFrame.cpp
index abe6bceefb..e87575b2ea 100644
--- a/layout/tables/nsTableWrapperFrame.cpp
+++ b/layout/tables/nsTableWrapperFrame.cpp
@@ -1025,7 +1025,7 @@ nsTableWrapperFrame::Reflow(nsPresContext*           aPresContext,
                      captionSize, captionMargin, captionOrigin, wm);
     FinishReflowChild(mCaptionFrames.FirstChild(), aPresContext, *captionMet,
                       captionRI.ptr(), wm, captionOrigin, containerSize,
-                      ReflowChildFlags::Default);
+                      ReflowChildFlags::ApplyRelativePositioning);
     captionRI.reset();
   }
   // XXX If the bsize is constrained then we need to check whether
@@ -1034,6 +1034,7 @@ nsTableWrapperFrame::Reflow(nsPresContext*           aPresContext,
   LogicalPoint innerOrigin(wm);
   GetInnerOrigin(captionSide, containSize, captionSize, captionMargin,
                  innerSize, innerMargin, innerOrigin, wm);
+  // NOTE: Relative positioning on the table applies to the whole table wrapper.
   FinishReflowChild(InnerTableFrame(), aPresContext, innerMet, innerRI.ptr(),
                     wm, innerOrigin, containerSize, ReflowChildFlags::Default);
   innerRI.reset();