Fix incorrect blink_gc memory dump caused by r383965

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

Index: third_party/WebKit/Source/platform/heap/Heap.h
diff --git a/third_party/WebKit/Source/platform/heap/Heap.h b/third_party/WebKit/Source/platform/heap/Heap.h
index 14c091abe199f9c5c72efd59a87ab625e8e93c04..43670c9986e297d95b265eb4984c81bb957feb86 100644
--- a/third_party/WebKit/Source/platform/heap/Heap.h
+++ b/third_party/WebKit/Source/platform/heap/Heap.h
@@ -119,6 +119,7 @@ public:
     static void increaseTotalAllocatedSpace(size_t delta) { atomicAdd(&s_totalAllocatedSpace, static_cast<long>(delta)); }
     static void decreaseTotalAllocatedSpace(size_t delta) { atomicSubtract(&s_totalAllocatedSpace, static_cast<long>(delta)); }
     static size_t totalAllocatedSpace() { return acquireLoad(&s_totalAllocatedSpace); }
+    static void resetHeapCounters();
 
 private:
     static bool s_isLowEndDevice;