Remove base's ALIGNOF/ALIGNAS in favor of alignof/alignas.

cc/base/contiguous_container.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_BASE_CONTIGUOUS_CONTAINER_H_
 #define CC_BASE_CONTIGUOUS_CONTAINER_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 151 matching lines @@
   const BaseElementType& first() const { return *begin(); }
   BaseElementType& last() { return *rbegin(); }
   const BaseElementType& last() const { return *rbegin(); }
   BaseElementType& operator[](size_t index) { return *(begin() + index); }
   const BaseElementType& operator[](size_t index) const {
     return *(begin() + index);
   }
 
   template <class DerivedElementType, typename... Args>
   DerivedElementType& AllocateAndConstruct(Args&&... args) {
-    static_assert(alignment % ALIGNOF(DerivedElementType) == 0,
+    static_assert(alignment % alignof(DerivedElementType) == 0,
                   "Derived type requires stronger alignment.");
     return *new (AlignedAllocate(sizeof(DerivedElementType)))
         DerivedElementType(std::forward<Args>(args)...);
   }
 
   void RemoveLast() {
     DCHECK(!empty());
     last().~BaseElementType();
     ContiguousContainerBase::RemoveLast();
   }
@@ skipping 33 matching lines @@
     DCHECK_EQ(aligned_size % alignment, 0u);
     DCHECK_GE(aligned_size, size);
     DCHECK_LT(aligned_size, size + alignment);
     return aligned_size;
   }
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_CONTIGUOUS_CONTAINER_H_