Convert some raw CanonicalCookie ptrs to scoped_ptr<CanonicalCookie>.

ios/net/cookies/cookie_store_ios_unittest.mm

Index: ios/net/cookies/cookie_store_ios_unittest.mm
diff --git a/ios/net/cookies/cookie_store_ios_unittest.mm b/ios/net/cookies/cookie_store_ios_unittest.mm
index 9bb977f6730b386886f3f3cc96e943973e47cbfd..7271abd6d7f08f860d62fcba2c3476adccd67db6 100644
--- a/ios/net/cookies/cookie_store_ios_unittest.mm
+++ b/ios/net/cookies/cookie_store_ios_unittest.mm
@@ -208,8 +208,11 @@ class TestPersistentCookieStore
     std::vector<net::CanonicalCookie*> cookies;
     net::CookieOptions options;
     options.set_include_httponly();
-    cookies.push_back(net::CanonicalCookie::Create(kTestCookieURL, "a=b",
-                                                   base::Time::Now(), options));
+
+    scoped_ptr<net::CanonicalCookie> cookie(net::CanonicalCookie::Create(
+        kTestCookieURL, "a=b", base::Time::Now(), options));
+    cookies.push_back(cookie.release());
+
     // Some canonical cookies cannot be converted into System cookies, for
     // example if value is not valid utf8. Such cookies are ignored.
     net::CanonicalCookie* bad_canonical_cookie = new net::CanonicalCookie(