Remove implicit conversions from scoped_refptr to T* in net/

net/http/url_security_manager_win.cc

Index: net/http/url_security_manager_win.cc
diff --git a/net/http/url_security_manager_win.cc b/net/http/url_security_manager_win.cc
index db5620ffa76f084ff819f36b75c0d89bd26f4bc8..557636642dcda686b21ab05a187a6b24f8ffaece 100644
--- a/net/http/url_security_manager_win.cc
+++ b/net/http/url_security_manager_win.cc
@@ -111,11 +111,11 @@ bool URLSecurityManagerWin::CanDelegate(const GURL& auth_origin) const {
 }
 
 bool URLSecurityManagerWin::EnsureSystemSecurityManager() {
-  if (!security_manager_) {
+  if (!security_manager_.get()) {
     HRESULT hr = CoInternetCreateSecurityManager(NULL,
                                                  security_manager_.Receive(),
                                                  NULL);
-    if (FAILED(hr) || !security_manager_) {
+    if (FAILED(hr) || !security_manager_.get()) {
       LOG(ERROR) << "Unable to create the Windows Security Manager instance";
       return false;
     }