Rename BaseHeap to BaseArena

third_party/WebKit/Source/platform/heap/TraceTraits.h

Index: third_party/WebKit/Source/platform/heap/TraceTraits.h
diff --git a/third_party/WebKit/Source/platform/heap/TraceTraits.h b/third_party/WebKit/Source/platform/heap/TraceTraits.h
index 43b923d5214f25535bf16c6750d4103d406607d5..3269ae0afff769a87a5ab69531db9d2e8c15ab6d 100644
--- a/third_party/WebKit/Source/platform/heap/TraceTraits.h
+++ b/third_party/WebKit/Source/platform/heap/TraceTraits.h
@@ -84,7 +84,7 @@ public:
         // the dangling pointer.
         // Release builds don't have the ASSERT, but it is OK because
         // release builds will crash at the following self->adjustAndMark
-        // because all the entries of the orphaned heaps are zeroed out and
+        // because all the entries of the orphaned arenas are zeroed out and
         // thus the item does not have a valid vtable.
         ASSERT(!pageFromObject(self)->orphaned());
         self->adjustAndMark(visitor);