Backed out 3 changesets (bug 1471704) for failing css/css-transforms/transform3d-preserve3d-013.html on a CLOSED TREE

Backed out changeset e4d9e6cdd630 (bug 1471704)
Backed out changeset 0bd6762c91fb (bug 1471704)
Backed out changeset 065a16bd6b0a (bug 1471704)

gfx/layers/PaintThread.h

@@ -186,7 +186,7 @@ typedef bool (*PrepDrawTargetForPaintingCallback)(CapturedPaintState* aPaintStat
 // Holds the key operations needed to update a tiled content client on the
 // paint thread.
 class CapturedTiledPaintState {
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CapturedTiledPaintState)
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CapturedPaintState)
 public:
   struct Copy {
     Copy(RefPtr<gfx::DrawTarget> aSource,

layout/reftests/text-stroke/reftest.list

@@ -3,7 +3,7 @@
 default-preferences pref(layout.css.prefixes.webkit,true)
 
 fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) fails-if(skiaContent&&(gtkWidget||winWidget)) == webkit-text-stroke-property-001.html webkit-text-stroke-property-001-ref.html
-fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) == webkit-text-stroke-property-002.html webkit-text-stroke-property-002-ref.html
+fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) fails-if(skiaContent&&!webrender&&gtkWidget) == webkit-text-stroke-property-002.html webkit-text-stroke-property-002-ref.html
 fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) fails-if(skiaContent&&gtkWidget) == webkit-text-stroke-property-003.html webkit-text-stroke-property-003-ref.html
 fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) fails-if(skiaContent&&gtkWidget) == webkit-text-stroke-property-004.html webkit-text-stroke-property-004-ref.html
 fuzzy-if(gtkWidget,255,20) fuzzy-if(winWidget,20,10) fails-if(skiaContent&&(gtkWidget||winWidget)) == webkit-text-stroke-property-005.html webkit-text-stroke-property-005-ref.html

modules/libpref/init/all.js

@@ -4827,7 +4827,7 @@ pref("layers.max-active", -1);
 // 0  -> full-tilt mode: Recomposite even if not transaction occured.
 pref("layers.offmainthreadcomposition.frame-rate", -1);
 
-#if defined(XP_MACOSX) || defined(MOZ_WIDGET_GTK)
+#if defined(XP_MACOSX) || defined (OS_OPENBSD)
 pref("layers.enable-tiles", true);
 #else
 pref("layers.enable-tiles", false);

testing/web-platform/meta/css/CSS2/backgrounds/background-position-001.xht.ini

@@ -1,3 +0,0 @@
-[background-position-001.xht]
-  expected:
-    if os == "linux": FAIL

testing/web-platform/meta/css/CSS2/backgrounds/background-position-002.xht.ini

@@ -1,3 +0,0 @@
-[background-position-002.xht]
-  expected:
-    if os == "linux": FAIL