Use C++11 alignment primitives

base/memory/singleton.h

Index: base/memory/singleton.h
diff --git a/base/memory/singleton.h b/base/memory/singleton.h
index 5c58d5fe2944cd332980fb39f5dc5e815a48c0d4..2f19f6cc3036ab154c6e4605601bca82359c0ed7 100644
--- a/base/memory/singleton.h
+++ b/base/memory/singleton.h
@@ -24,7 +24,6 @@
 #include "base/base_export.h"
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/memory/aligned_memory.h"
 #include "base/threading/thread_restrictions.h"
 
 namespace base {
@@ -115,7 +114,7 @@ struct StaticMemorySingletonTraits {
     if (subtle::NoBarrier_AtomicExchange(&dead_, 1))
       return NULL;
 
-    return new(buffer_.void_data()) Type();
+    return new (buffer_) Type();
   }
 
   static void Delete(Type* p) {
@@ -130,14 +129,13 @@ struct StaticMemorySingletonTraits {
   static void Resurrect() { subtle::NoBarrier_Store(&dead_, 0); }
 
  private:
-  static AlignedMemory<sizeof(Type), ALIGNOF(Type)> buffer_;
+  static alignas(Type) char buffer_[sizeof(Type)];
   // Signal the object was already deleted, so it is not revived.
   static subtle::Atomic32 dead_;
 };
 
 template <typename Type>
-AlignedMemory<sizeof(Type), ALIGNOF(Type)>
-    StaticMemorySingletonTraits<Type>::buffer_;
+alignas(Type) char StaticMemorySingletonTraits<Type>::buffer_[sizeof(Type)];
 template <typename Type>
 subtle::Atomic32 StaticMemorySingletonTraits<Type>::dead_ = 0;