Introduce ProcessHeap

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

Index: third_party/WebKit/Source/platform/heap/ThreadState.cpp
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.cpp b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
index 73e7ce5a5372e6775c29922b44e95a4f9c06f95f..3580f5d7a8904ae28682033c2a0ca8b7caaf9018 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.cpp
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
@@ -297,7 +297,7 @@ void ThreadState::cleanup()
         // thread local GC.
         prepareForThreadStateTermination();
 
-        Heap::crossThreadPersistentRegion().prepareForThreadStateTermination(this);
+        ProcessHeap::crossThreadPersistentRegion().prepareForThreadStateTermination(this);
 
         // Do thread local GC's as long as the count of thread local Persistents
         // changes and is above zero.
@@ -336,7 +336,7 @@ void ThreadState::detach()
 void ThreadState::visitPersistentRoots(Visitor* visitor)
 {
     TRACE_EVENT0("blink_gc", "ThreadState::visitPersistentRoots");
-    Heap::crossThreadPersistentRegion().tracePersistentNodes(visitor);
+    ProcessHeap::crossThreadPersistentRegion().tracePersistentNodes(visitor);
 
     for (ThreadState* state : attachedThreads())
         state->visitPersistents(visitor);