Revert of Rename Heap to ThreadHeap

third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp

Index: third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp
diff --git a/third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp b/third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp
index 43612f8c6da5f6b5f82aaf0ddb367650cbf468ac..8a23cae263261d1f4c6729277ee7019290702a5c 100644
--- a/third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp
+++ b/third_party/WebKit/Source/modules/csspaint/PaintWorkletTest.cpp
@@ -64,7 +64,7 @@
     ASSERT(handle.isWeak());
 
     // Run a GC, persistent shouldn't have been collected yet.
-    ThreadHeap::collectAllGarbage();
+    Heap::collectAllGarbage();
     V8GCController::collectAllGarbageForTesting(isolate);
     ASSERT(!handle.isEmpty());
 
@@ -72,7 +72,7 @@
     m_page.clear();
 
     // Run a GC, the persistent should have been collected.
-    ThreadHeap::collectAllGarbage();
+    Heap::collectAllGarbage();
     V8GCController::collectAllGarbageForTesting(isolate);
     ASSERT(handle.isEmpty());
 }