Move wtf/BitwiseOperations.h into base/bits.h.

third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h

Index: third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h
diff --git a/third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h b/third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h
index 2c7d799913e27ed9f960dfb7e42160c366a70176..aa3c0bbc527ebd92a65eecf29dd0b9a32db54f69 100644
--- a/third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h
+++ b/third_party/WebKit/Source/wtf/allocator/PartitionAlloc.h
@@ -799,7 +799,7 @@ ALWAYS_INLINE void partitionFree(void* ptr) {
 ALWAYS_INLINE PartitionBucket* partitionGenericSizeToBucket(
     PartitionRootGeneric* root,
     size_t size) {
-  size_t order = kBitsPerSizet - countLeadingZerosSizet(size);
+  size_t order = kBitsPerSizet - CountLeadingZeroBitsSizeT(size);
   // The order index is simply the next few bits after the most significant bit.
   size_t orderIndex = (size >> root->orderIndexShifts[order]) &
                       (kGenericNumBucketsPerOrder - 1);