Add per thread heap enabled MarkingVisitorImpl

third_party/WebKit/Source/platform/heap/Visitor.cpp

Index: third_party/WebKit/Source/platform/heap/Visitor.cpp
diff --git a/third_party/WebKit/Source/platform/heap/Visitor.cpp b/third_party/WebKit/Source/platform/heap/Visitor.cpp
index 6f5d00fbaf3f812f5692f202b3d57277f2a446e4..4cf3995e7fff9c1672781d061ea9e4928d03b3ef 100644
--- a/third_party/WebKit/Source/platform/heap/Visitor.cpp
+++ b/third_party/WebKit/Source/platform/heap/Visitor.cpp
@@ -12,18 +12,36 @@ namespace blink {
 
 PassOwnPtr<Visitor> Visitor::create(ThreadState* state, BlinkGC::GCType gcType)
 {
-    switch (gcType) {
-    case BlinkGC::GCWithSweep:
-    case BlinkGC::GCWithoutSweep:
-        return adoptPtr(new MarkingVisitor<Visitor::GlobalMarking>(state));
-    case BlinkGC::TakeSnapshot:
-        return adoptPtr(new MarkingVisitor<Visitor::SnapshotMarking>(state));
-    case BlinkGC::ThreadTerminationGC:
-        return adoptPtr(new MarkingVisitor<Visitor::ThreadLocalMarking>(state));
-    case BlinkGC::ThreadLocalWeakProcessing:
-        return adoptPtr(new MarkingVisitor<Visitor::WeakProcessing>(state));
-    default:
-        ASSERT_NOT_REACHED();
+    bool perThreadHeapEnabled = false;
+    if (perThreadHeapEnabled) {
+        switch (gcType) {
+        case BlinkGC::GCWithSweep:
+        case BlinkGC::GCWithoutSweep:
+            // InlinedGlobalMarkingVisitor does not support per thread heap disabled heaps.
+            return adoptPtr(new MarkingVisitor<Visitor::ThreadLocalMarking, true>(state));
+        case BlinkGC::TakeSnapshot:
+            return adoptPtr(new MarkingVisitor<Visitor::SnapshotMarking, true>(state));
+        case BlinkGC::ThreadTerminationGC:
+            return adoptPtr(new MarkingVisitor<Visitor::ThreadTerminationMarking, true>(state));
+        case BlinkGC::ThreadLocalWeakProcessing:
+            return adoptPtr(new MarkingVisitor<Visitor::WeakProcessing, true>(state));
+        default:
+            ASSERT_NOT_REACHED();
+        }
+    } else {
+        switch (gcType) {
+        case BlinkGC::GCWithSweep:
+        case BlinkGC::GCWithoutSweep:
+            return adoptPtr(new MarkingVisitor<Visitor::GlobalMarking, false>(state));
+        case BlinkGC::TakeSnapshot:
+            return adoptPtr(new MarkingVisitor<Visitor::SnapshotMarking, false>(state));
+        case BlinkGC::ThreadTerminationGC:
+            return adoptPtr(new MarkingVisitor<Visitor::ThreadTerminationMarking, false>(state));
+        case BlinkGC::ThreadLocalWeakProcessing:
+            return adoptPtr(new MarkingVisitor<Visitor::WeakProcessing, false>(state));
+        default:
+            ASSERT_NOT_REACHED();
+        }
     }
     return nullptr;
 }