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

base/lazy_instance.h

Index: base/lazy_instance.h
diff --git a/base/lazy_instance.h b/base/lazy_instance.h
index 1183806bef5565ed9a142b1c26cc94e68de0ded0..66efd481425af0ddc8ea551496d881ddb0b508de 100644
--- a/base/lazy_instance.h
+++ b/base/lazy_instance.h
@@ -60,10 +60,10 @@ struct DefaultLazyInstanceTraits {
 #endif
 
   static Type* New(void* instance) {
-    DCHECK_EQ(reinterpret_cast<uintptr_t>(instance) & (ALIGNOF(Type) - 1), 0u)
-        << ": Bad boy, the buffer passed to placement new is not aligned!\n"
-        "This may break some stuff like SSE-based optimizations assuming the "
-        "<Type> objects are word aligned.";
+    DCHECK_EQ(reinterpret_cast<uintptr_t>(instance) & (alignof(Type) - 1), 0u)

[jbroman, 2017/02/08 18:21:34]

I'm not sure why this isn't just reinterpret_cast<uintptr_t>(instance) %
alignof(Type), which seems clearer than using the bitwise trick, but it's not
worth changing.

+        << "The buffer passed to placement new is not aligned!\n"
+           "This may break some stuff like SSE-based optimizations assuming "
+           "the <Type> objects are word aligned.";
     // Use placement new to initialize our instance in our preallocated space.
     // The parenthesis is very important here to force POD type initialization.
     return new (instance) Type();
@@ -184,7 +184,7 @@ class LazyInstance {
 
   subtle::AtomicWord private_instance_;
   // Preallocated space for the Type instance.
-  base::AlignedMemory<sizeof(Type), ALIGNOF(Type)> private_buf_;
+  base::AlignedMemory<sizeof(Type), alignof(Type)> private_buf_;
 
  private:
   Type* instance() {