Revert of Rename Heap to ThreadHeap

third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp b/third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp
index f110bad683f1499273b33cd87d7c2142270bba27..810e3fa4bc05d0543180d7b83efb1b98406e99b4 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8GCController.cpp
@@ -356,7 +356,7 @@
         // to collect all garbage, you need to wait until the next event loop.
         // Regarding (2), it would be OK in practice to trigger only one GC per gcEpilogue, because
         // GCController.collectAll() forces multiple V8's GC.
-        ThreadHeap::collectGarbage(BlinkGC::HeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
+        Heap::collectGarbage(BlinkGC::HeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
 
         // Forces a precise GC at the end of the current event loop.
         if (ThreadState::current()) {
@@ -369,7 +369,7 @@
     // low memory notifications.
     if (flags & v8::kGCCallbackFlagCollectAllAvailableGarbage) {
         // This single GC is not enough. See the above comment.
-        ThreadHeap::collectGarbage(BlinkGC::HeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
+        Heap::collectGarbage(BlinkGC::HeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
 
         // Do not force a precise GC at the end of the current event loop.
         // According to UMA stats, the collection rate of the precise GC