Upgrade AlignedMemory to support dynamic allocations.

base/memory/singleton.h

Index: base/memory/singleton.h
diff --git a/base/memory/singleton.h b/base/memory/singleton.h
index 4564790722b121fefcd19e4d0b6a587b108c46c0..5b5562b84dbe0185cf05a54f5c17b18779c6fdcc 100644
--- a/base/memory/singleton.h
+++ b/base/memory/singleton.h
@@ -127,12 +127,12 @@ struct StaticMemorySingletonTraits {
   }
 
  private:
-  static base::AlignedMemory<sizeof(Type), ALIGNOF(Type)> buffer_;
+  static base::AlignedMemory<ALIGNOF(Type), sizeof(Type)> buffer_;
   // Signal the object was already deleted, so it is not revived.
   static base::subtle::Atomic32 dead_;
 };
 
-template <typename Type> base::AlignedMemory<sizeof(Type), ALIGNOF(Type)>
+template <typename Type> base::AlignedMemory<ALIGNOF(Type), sizeof(Type)>
     StaticMemorySingletonTraits<Type>::buffer_;
 template <typename Type> base::subtle::Atomic32
     StaticMemorySingletonTraits<Type>::dead_ = 0;