Rename BASE_API to BASE_EXPORT.

base/base64.h

Index: base/base64.h
===================================================================
--- base/base64.h	(revision 95578)
+++ base/base64.h	(working copy)
@@ -8,18 +8,18 @@
 
 #include <string>
 
-#include "base/base_api.h"
+#include "base/base_export.h"
 #include "base/string_piece.h"
 
 namespace base {
 
 // Encodes the input string in base64.  Returns true if successful and false
 // otherwise.  The output string is only modified if successful.
-BASE_API bool Base64Encode(const StringPiece& input, std::string* output);
+BASE_EXPORT bool Base64Encode(const StringPiece& input, std::string* output);
 
 // Decodes the base64 input string.  Returns true if successful and false
 // otherwise.  The output string is only modified if successful.
-BASE_API bool Base64Decode(const StringPiece& input, std::string* output);
+BASE_EXPORT bool Base64Decode(const StringPiece& input, std::string* output);
 
 }  // namespace base