Bug 1409736 - Initialize the new clip member introduced in WR PR 1867. r=jrmuizel

MozReview-Commit-ID: JRzYT4WNoJi

--HG--
extra : rebase_source : 0b9ffec157975f48ab8ca8c8ec845d8396488eba

gfx/webrender_bindings/WebRenderTypes.h

@@ -325,6 +325,7 @@ static inline wr::ComplexClipRegion ToComplexClipRegion(const RoundedRect& rect)
   ret.radii.top_right    = ToLayoutSize(LayoutDeviceSize::FromUnknownSize(rect.corners.radii[mozilla::eCornerTopRight]));
   ret.radii.bottom_left  = ToLayoutSize(LayoutDeviceSize::FromUnknownSize(rect.corners.radii[mozilla::eCornerBottomLeft]));
   ret.radii.bottom_right = ToLayoutSize(LayoutDeviceSize::FromUnknownSize(rect.corners.radii[mozilla::eCornerBottomRight]));
+  ret.mode = wr::ClipMode::Clip;
   return ret;
 }
 

layout/painting/DisplayItemClip.cpp

@@ -490,6 +490,7 @@ DisplayItemClip::ToComplexClipRegions(int32_t aAppUnitsPerDevPixel,
         LayoutDeviceSize::FromAppUnits(nsSize(radii[eCornerTopRightX], radii[eCornerTopRightY]), aAppUnitsPerDevPixel),
         LayoutDeviceSize::FromAppUnits(nsSize(radii[eCornerBottomLeftX], radii[eCornerBottomLeftY]), aAppUnitsPerDevPixel),
         LayoutDeviceSize::FromAppUnits(nsSize(radii[eCornerBottomRightX], radii[eCornerBottomRightY]), aAppUnitsPerDevPixel));
+    region->mode = wr::ClipMode::Clip;
   }
 }