[PartitionAlloc] Temporarily use CHECK in SetFreelistHead

Temporarily use CHECK in SetFreelistHead to debug a crash.
Should be reverted after a Canary release.

Bug: 1137799
Change-Id: I9e01a5cdfafb7da2af76997f8c42716394ac4cd3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2491724Reviewed-by: Benoit L <lizeb@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Commit-Queue: Keishi Hattori <keishi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819797}

base/allocator/partition_allocator/partition_page.h

@@ -365,9 +365,9 @@ ALWAYS_INLINE size_t SlotSpanMetadata<thread_safe>::GetRawSize() const {
 template <bool thread_safe>
 ALWAYS_INLINE void SlotSpanMetadata<thread_safe>::SetFreelistHead(
     PartitionFreelistEntry* new_head) {
-  PA_DCHECK(!new_head ||
-            (reinterpret_cast<uintptr_t>(this) & kSuperPageBaseMask) ==
-                (reinterpret_cast<uintptr_t>(new_head) & kSuperPageBaseMask));
+  PA_CHECK(!new_head ||
+           (reinterpret_cast<uintptr_t>(this) & kSuperPageBaseMask) ==
+               (reinterpret_cast<uintptr_t>(new_head) & kSuperPageBaseMask));
   freelist_head = new_head;
 }