Clean-up inline members of nested classes (net/)

net/base/transport_security_state.h

Index: net/base/transport_security_state.h
diff --git a/net/base/transport_security_state.h b/net/base/transport_security_state.h
index 2e4b42ee91cdebba8008da985b19f39ce1d9fee3..3b822f26c9d8d8bd7ee307f44ed22309d8104866 100644
--- a/net/base/transport_security_state.h
+++ b/net/base/transport_security_state.h
@@ -153,11 +153,8 @@ class NET_EXPORT TransportSecurityState
 
   class Iterator {
    public:
-    explicit Iterator(const TransportSecurityState& state)
-        : iterator_(state.enabled_hosts_.begin()),
-          end_(state.enabled_hosts_.end()) {
-    }
-    ~Iterator() {}
+    explicit Iterator(const TransportSecurityState& state);
+    ~Iterator();
 
     bool HasNext() const { return iterator_ != end_; }
     void Advance() { ++iterator_; }