Shift URLRequestContextStorage over to taking scoped_ptrs.

chrome/browser/extensions/api/platform_keys/verify_trust_api.cc

Index: chrome/browser/extensions/api/platform_keys/verify_trust_api.cc
diff --git a/chrome/browser/extensions/api/platform_keys/verify_trust_api.cc b/chrome/browser/extensions/api/platform_keys/verify_trust_api.cc
index 3a2b5540b1a6851fcd0a0ed2b94ce725f9f61e76..98187da8b08f3dda9a51f0bdce72b644e2de4cb8 100644
--- a/chrome/browser/extensions/api/platform_keys/verify_trust_api.cc
+++ b/chrome/browser/extensions/api/platform_keys/verify_trust_api.cc
@@ -177,13 +177,11 @@ void VerifyTrustAPI::IOPart::Verify(scoped_ptr<Params> params,
     return;
   }
 
-  net::CertVerifier* verifier = nullptr;
-  if (ContainsKey(extension_to_verifier_, extension_id)) {
-    verifier = extension_to_verifier_[extension_id].get();
-  } else {
-    verifier = net::CertVerifier::CreateDefault();
-    extension_to_verifier_[extension_id] = make_linked_ptr(verifier);
+  if (!ContainsKey(extension_to_verifier_, extension_id)) {
+    extension_to_verifier_[extension_id] =
+        make_linked_ptr(net::CertVerifier::CreateDefault().release());
   }
+  net::CertVerifier* verifier = extension_to_verifier_[extension_id].get();
 
   scoped_ptr<net::CertVerifyResult> verify_result(new net::CertVerifyResult);
   scoped_ptr<net::BoundNetLog> net_log(new net::BoundNetLog);