Rename CRYPTO_API to CRYPTO_EXPORT.

crypto/hmac.h

Index: crypto/hmac.h
===================================================================
--- crypto/hmac.h	(revision 95624)
+++ crypto/hmac.h	(working copy)
@@ -13,14 +13,14 @@
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_piece.h"
-#include "crypto/crypto_api.h"
+#include "crypto/crypto_export.h"
 
 namespace crypto {
 
 // Simplify the interface and reduce includes by abstracting out the internals.
 struct HMACPlatformData;
 
-class CRYPTO_API HMAC {
+class CRYPTO_EXPORT HMAC {
  public:
   // The set of supported hash functions. Extend as required.
   enum HashAlgorithm {