Update from https://crrev.com/308996

net/cert/ct_ev_whitelist.h

Index: net/cert/ct_ev_whitelist.h
diff --git a/net/cert/ct_ev_whitelist.h b/net/cert/ct_ev_whitelist.h
index a12b9d52975a21a1e7fdc4439264e4a2e3838ef6..f31b7a1d4fbd008cb4628b8576ba656fd3226e82 100644
--- a/net/cert/ct_ev_whitelist.h
+++ b/net/cert/ct_ev_whitelist.h
@@ -10,6 +10,12 @@
 #include "base/memory/ref_counted.h"
 #include "net/base/net_export.h"
 
+namespace base {
+
+class Version;
+
+}  // namespace base
+
 namespace net {
 
 namespace ct {
@@ -26,6 +32,9 @@ class NET_EXPORT EVCertsWhitelist
   // false otherwise.
   virtual bool IsValid() const = 0;
 
+  // Returns the version of the whitelist in use
+  virtual base::Version Version() const = 0;
+
  protected:
   virtual ~EVCertsWhitelist() {}