linux: components support for base/

base/synchronization/lock_impl.h

Index: base/synchronization/lock_impl.h
diff --git a/base/synchronization/lock_impl.h b/base/synchronization/lock_impl.h
index 29946100ba0d35353ad925ca3cd2deda3fb7c28e..9bb50de38d834847cc028ed38c2ae6c6f5338600 100644
--- a/base/synchronization/lock_impl.h
+++ b/base/synchronization/lock_impl.h
@@ -6,6 +6,8 @@
 #define BASE_SYNCHRONIZATION_LOCK_IMPL_H_
 #pragma once
 
+#include "base/base_api.h"
+#include "base/basictypes.h"
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
@@ -14,15 +16,13 @@
 #include <pthread.h>
 #endif
 
-#include "base/basictypes.h"
-
 namespace base {
 namespace internal {
 
 // This class implements the underlying platform-specific spin-lock mechanism
 // used for the Lock class.  Most users should not use LockImpl directly, but
 // should instead use Lock.
-class LockImpl {
+class BASE_API LockImpl {
  public:
 #if defined(OS_WIN)
   typedef CRITICAL_SECTION OSLockType;