[heap] Clear cached wrappers upon aborting incremental marking

src/heap/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 1206 matching lines @@
 
   void RegisterWrappersWithEmbedderHeapTracer();
 
   // In order to avoid running out of memory we force tracing wrappers if there
   // are too many of them.
   bool RequiresImmediateWrapperProcessing();
 
   EmbedderHeapTracer* embedder_heap_tracer() { return embedder_heap_tracer_; }
 
   size_t wrappers_to_trace() { return wrappers_to_trace_.size(); }
+  void clear_wrappers_to_trace() { wrappers_to_trace_.clear(); }
 
   // ===========================================================================
   // External string table API. ================================================
   // ===========================================================================
 
   // Registers an external string.
   inline void RegisterExternalString(String* string);
 
   // Finalizes an external string by deleting the associated external
   // data and clearing the resource pointer.
@@ skipping 1410 matching lines @@
   friend class LargeObjectSpace;
   friend class NewSpace;
   friend class PagedSpace;
   DISALLOW_COPY_AND_ASSIGN(AllocationObserver);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_