Move *keychain_mac* files to crypto/

crypto/mock_keychain_mac.cc

Index: crypto/mock_keychain_mac.cc
diff --git a/chrome/browser/mock_keychain_mac.cc b/crypto/mock_keychain_mac.cc
similarity index 99%
rename from chrome/browser/mock_keychain_mac.cc
rename to crypto/mock_keychain_mac.cc
index 59d2b5835b51582cf4597e13874fd2f1cbda51cb..f80ecb5d9e08f016e150c304f55c228db689bee5 100644
--- a/chrome/browser/mock_keychain_mac.cc
+++ b/crypto/mock_keychain_mac.cc
@@ -4,7 +4,9 @@
 
 #include "base/logging.h"
 #include "base/time.h"
-#include "chrome/browser/mock_keychain_mac.h"
+#include "crypto/mock_keychain_mac.h"
+
+namespace crypto {
 
 MockKeychain::MockKeychain()
     : next_item_key_(0),
@@ -523,3 +525,5 @@ void MockKeychain::AddTestItem(const KeychainTestData& item_data) {
   SetTestDataPasswordString(key, item_data.password);
   SetTestDataNegativeItem(key, item_data.negative_item);
 }
+
+} // namespace crypto