Base: Last set of files to use BASE_API (for base.dll)

base/threading/thread_collision_warner.h

Index: base/threading/thread_collision_warner.h
===================================================================
--- base/threading/thread_collision_warner.h	(revision 79631)
+++ base/threading/thread_collision_warner.h	(working copy)
@@ -131,12 +131,12 @@
 // AsserterBase is the interfaces and DCheckAsserter is the default asserter
 // used. During the unit tests is used another class that doesn't "DCHECK"
 // in case of collision (check thread_collision_warner_unittests.cc)
-struct AsserterBase {
+struct BASE_API AsserterBase {
   virtual ~AsserterBase() {}
   virtual void warn() = 0;
 };
 
-struct DCheckAsserter : public AsserterBase {
+struct BASE_API DCheckAsserter : public AsserterBase {
   virtual ~DCheckAsserter() {}
   virtual void warn();
 };