Refactor the Heap into ThreadHeap to prepare for per thread heaps

third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h

Index: third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h b/third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h
index 6efa056876d9b0235b982162e3705de002c249ee..2cfe8a18c8fd1b243b8f2d5d999f70a6bc3fe08d 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h
+++ b/third_party/WebKit/Source/bindings/core/v8/WrapperTypeInfo.h
@@ -140,7 +140,7 @@ struct WrapperTypeInfo {
     void refObject(ScriptWrappable* scriptWrappable) const
     {
         if (isGarbageCollected()) {
-            Heap::increaseWrapperCount(1);
+            ThreadState::current()->increaseWrapperCount(1);
         } else {
             ASSERT(refObjectFunction);
             refObjectFunction(scriptWrappable);
@@ -150,8 +150,8 @@ struct WrapperTypeInfo {
     void derefObject(ScriptWrappable* scriptWrappable) const
     {
         if (isGarbageCollected()) {
-            Heap::decreaseWrapperCount(1);
-            Heap::increaseCollectedWrapperCount(1);
+            ThreadState::current()->decreaseWrapperCount(1);
+            ThreadState::current()->increaseCollectedWrapperCount(1);

[haraken, 2016/01/07 08:06:21]

Avoid calling ThreadState::current() twice.

         } else {
             ASSERT(derefObjectFunction);
             derefObjectFunction(scriptWrappable);
@@ -161,8 +161,8 @@ struct WrapperTypeInfo {
     void derefObject() const
     {
         ASSERT(isGarbageCollected());
-        Heap::decreaseWrapperCount(1);
-        Heap::increaseCollectedWrapperCount(1);
+        ThreadState::current()->decreaseWrapperCount(1);
+        ThreadState::current()->increaseCollectedWrapperCount(1);

[haraken, 2016/01/07 08:06:21]

Ditto.

     }
 
     void trace(Visitor* visitor, ScriptWrappable* scriptWrappable) const