Fix branding/official build confusion in os_crypt.

TBR=cfroussios@chromium.org

Review-Url: https://codereview.chromium.org/2264163002
Cr-Commit-Position: refs/heads/master@{#413477}

components/os_crypt/key_storage_linux.cc

@@ -18,7 +18,7 @@
 #include "components/os_crypt/key_storage_kwallet.h"
 #endif
 
-#if defined(OFFICIAL_BUILD)
+#if defined(GOOGLE_CHROME_BUILD)
 const char KeyStorageLinux::kFolderName[] = "Chrome Keys";
 const char KeyStorageLinux::kKey[] = "Chrome Safe Storage";
 #else