Base: First pass at having base.dll: definition of

base/lazy_instance.h

Index: base/lazy_instance.h
===================================================================
--- base/lazy_instance.h	(revision 78949)
+++ base/lazy_instance.h	(working copy)
@@ -39,6 +39,7 @@
 #include <new>  // For placement new.
 
 #include "base/atomicops.h"
+#include "base/base_api.h"
 #include "base/basictypes.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread_restrictions.h"
@@ -80,7 +81,7 @@
 
 // We pull out some of the functionality into a non-templated base, so that we
 // can implement the more complicated pieces out of line in the .cc file.
-class LazyInstanceHelper {
+class BASE_API LazyInstanceHelper {
  protected:
   enum {
     STATE_EMPTY    = 0,