Load additional NSS library files in zygote main if remoting is enabled

base/nss_util.h

Index: base/nss_util.h
diff --git a/base/nss_util.h b/base/nss_util.h
index 5502b08f5b25f3ff35bf5008c9975265b81601c1..4be12cea5867b52c5972296b8913ddcc917d31d9 100644
--- a/base/nss_util.h
+++ b/base/nss_util.h
@@ -65,6 +65,15 @@ void ForceNSSNoDBInit();
 // WARNING: Use this with caution.
 void DisableNSSForkCheck();
 
+// Load NSS library files. This function has no effect on Mac and Windows.
+// This loads the necessary NSS library files so that NSS can be initialized
+// after loading additional library files is disallowed, for example when the
+// sandbox is active.
+//
+// Note that this does not load libnssckbi.so which contains the root
+// certificates.
+void LoadNSSLibraries();
+
 // Check if the current NSS version is greater than or equals to |version|.
 // A sample version string is "3.12.3".
 bool CheckNSSVersion(const char* version);