Introduce HeapAllocHooks

third_party/WebKit/Source/platform/heap/HeapPage.cpp

Index: third_party/WebKit/Source/platform/heap/HeapPage.cpp
diff --git a/third_party/WebKit/Source/platform/heap/HeapPage.cpp b/third_party/WebKit/Source/platform/heap/HeapPage.cpp
index 637100d5f8eb42d30327a9ce160010aaeeb1702a..5c0b96271774e11c1442d3776e0313938252e487 100644
--- a/third_party/WebKit/Source/platform/heap/HeapPage.cpp
+++ b/third_party/WebKit/Source/platform/heap/HeapPage.cpp
@@ -1133,6 +1133,7 @@ void NormalPage::sweep()
             // This is a fast version of header->payloadSize().
             size_t payloadSize = size - sizeof(HeapObjectHeader);
             Address payload = header->payload();
+            HeapAllocHooks::freeHookIfEnabled(payload);

[haraken, 2016/02/12 10:29:19]

Can we move this into header->finalize()?

[hajimehoshi, 2016/02/15 07:14:46]

Done.

             // For ASan, unpoison the object before calling the finalizer. The
             // finalized object will be zero-filled and poison'ed afterwards.
             // Given all other unmarked objects are poisoned, ASan will detect
@@ -1448,6 +1449,7 @@ void LargeObjectPage::removeFromHeap()
 
 void LargeObjectPage::sweep()
 {
+    HeapAllocHooks::freeHookIfEnabled(payload());

[haraken, 2016/02/12 10:29:19]

Then you can remove this.

[hajimehoshi, 2016/02/15 07:14:46]

Done.

     heapObjectHeader()->unmark();
     Heap::increaseMarkedObjectSize(size());
 }