Bug 1388298 - Add an API to process all invalidations on the main thread. r=emilio

MozReview-Commit-ID: I7rBwvPQykR

--HG--
extra : rebase_source : 432210b2798c8b602fb7659e097721c6fbc1d60d

layout/base/ServoRestyleManager.cpp

@@ -1103,6 +1103,17 @@ ServoRestyleManager::ProcessPendingRestyles()
   DoProcessPendingRestyles(ServoTraversalFlags::Empty);
 }
 
+void
+ServoRestyleManager::ProcessAllPendingAttributeAndStateInvalidations()
+{
+  AutoTimelineMarker marker(mPresContext->GetDocShell(),
+                            "ProcessAllPendingAttributeAndStateInvalidations");
+  for (auto iter = mSnapshots.Iter(); !iter.Done(); iter.Next()) {
+    Servo_ProcessInvalidations(StyleSet()->RawSet(), iter.Key(), &mSnapshots);
+  }
+  ClearSnapshots();
+}
+
 void
 ServoRestyleManager::UpdateOnlyAnimationStyles()
 {

layout/base/ServoRestyleManager.h

@@ -185,6 +185,7 @@ public:
   void PostRebuildAllStyleDataEvent(nsChangeHint aExtraHint,
                                     nsRestyleHint aRestyleHint);
   void ProcessPendingRestyles();
+  void ProcessAllPendingAttributeAndStateInvalidations();
 
   /**
    * Performs a Servo animation-only traversal to compute style for all nodes

layout/style/ServoBindingList.h

@@ -624,6 +624,12 @@ SERVO_BINDING_FUNC(Servo_GetCustomPropertyNameAt, bool,
                    nsAString* name)
 
 
+SERVO_BINDING_FUNC(Servo_ProcessInvalidations, void,
+                   RawServoStyleSetBorrowed set,
+                   RawGeckoElementBorrowed element,
+                   const mozilla::ServoElementSnapshotTable* snapshots)
+
+
 // AddRef / Release functions
 #define SERVO_ARC_TYPE(name_, type_)                                \
   SERVO_BINDING_FUNC(Servo_##name_##_AddRef, void, type_##Borrowed) \