Disable collection backing reallocation during pre finalizer

third_party/WebKit/Source/platform/wtf/HashTable.h

Index: third_party/WebKit/Source/platform/wtf/HashTable.h
diff --git a/third_party/WebKit/Source/platform/wtf/HashTable.h b/third_party/WebKit/Source/platform/wtf/HashTable.h
index 0907c7420f897798365749fadea97240eb6041d2..800b4d5d941b2e1e5a48fe34d9578cdc189f32f3 100644
--- a/third_party/WebKit/Source/platform/wtf/HashTable.h
+++ b/third_party/WebKit/Source/platform/wtf/HashTable.h
@@ -836,6 +836,7 @@ class HashTable final
     // expensive.
     return key_count_ * kMinLoad < table_size_ &&
            table_size_ > KeyTraits::kMinimumTableSize &&
+           !Allocator::IsObjectResurrectionForbidden() &&

[sof, 2017/04/15 18:57:31]

Isn't this redundant (as IsAllocationAllowed() also checks)?

[keishi, 2017/04/17 06:37:55]

Oops I modified HeapAllocator::IsAllocationAllowed by mistake. Made 
https://codereview.chromium.org/2818413002/

            Allocator::IsAllocationAllowed();
   }
   ValueType* Expand(ValueType* entry = 0);
@@ -1641,6 +1642,7 @@ HashTable<Key, Value, Extractor, HashFunctions, Traits, KeyTraits, Allocator>::
     ExpandBuffer(unsigned new_table_size, Value* entry, bool& success) {
   success = false;
   DCHECK_LT(table_size_, new_table_size);
+  CHECK(!Allocator::IsObjectResurrectionForbidden());
   if (!Allocator::ExpandHashTableBacking(table_,
                                          new_table_size * sizeof(ValueType)))
     return nullptr;