Cleanup: Use AUTH_SCHEME enum instead of a string.

net/http/http_auth_cache_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_auth_cache.h"
 #include "net/http/http_auth_handler.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 
 namespace {
 
 class MockAuthHandler : public HttpAuthHandler {
  public:
-  MockAuthHandler(const char* scheme, const std::string& realm,
+  MockAuthHandler(HttpAuth::Scheme scheme,
+                  const std::string& realm,
                   HttpAuth::Target target) {
     // Can't use initializer list since these are members of the base class.
-    scheme_ = scheme;
+    auth_scheme_ = scheme;
     realm_ = realm;
     score_ = 1;
     target_ = target;
     properties_ = 0;
   }
 
   virtual HttpAuth::AuthorizationResult HandleAnotherChallenge(
       HttpAuth::ChallengeTokenizer* challenge) {
     return HttpAuth::AUTHORIZATION_RESULT_REJECT;
   }
@@ skipping 10 matching lines @@
                                     std::string* auth_token) {
     *auth_token = "mock-credentials";
     return OK;
   }
 
 
  private:
   ~MockAuthHandler() {}
 };
 
-const char* kBasic = "basic";
-const char* kDigest = "digest";
 const char* kRealm1 = "Realm1";
 const char* kRealm2 = "Realm2";
 const char* kRealm3 = "Realm3";
 const char* kRealm4 = "Realm4";
 const string16 k123(ASCIIToUTF16("123"));
 const string16 k1234(ASCIIToUTF16("1234"));
 const string16 kAdmin(ASCIIToUTF16("admin"));
 const string16 kAlice(ASCIIToUTF16("alice"));
 const string16 kAlice2(ASCIIToUTF16("alice2"));
 const string16 kPassword(ASCIIToUTF16("password"));
 const string16 kRoot(ASCIIToUTF16("root"));
 const string16 kUsername(ASCIIToUTF16("username"));
 const string16 kWileCoyote(ASCIIToUTF16("wilecoyote"));
 
 }  // namespace
 
 // Test adding and looking-up cache entries (both by realm and by path).
 TEST(HttpAuthCacheTest, Basic) {
   GURL origin("http://www.google.com");
   HttpAuthCache cache;
   HttpAuthCache::Entry* entry;
 
   // Add cache entries for 3 realms: "Realm1", "Realm2", "Realm3"
 
   scoped_ptr<HttpAuthHandler> realm1_handler(
-      new MockAuthHandler(kBasic, kRealm1, HttpAuth::AUTH_SERVER));
-  cache.Add(origin, realm1_handler->realm(), realm1_handler->scheme(),
+      new MockAuthHandler(HttpAuth::AUTH_SCHEME_BASIC,
+                          kRealm1,
+                          HttpAuth::AUTH_SERVER));
+  cache.Add(origin, realm1_handler->realm(), realm1_handler->auth_scheme(),
             "Basic realm=Realm1", ASCIIToUTF16("realm1-user"),
             ASCIIToUTF16("realm1-password"), "/foo/bar/index.html");
 
   scoped_ptr<HttpAuthHandler> realm2_handler(
-      new MockAuthHandler(kBasic, kRealm2, HttpAuth::AUTH_SERVER));
-  cache.Add(origin, realm2_handler->realm(), realm2_handler->scheme(),
+      new MockAuthHandler(HttpAuth::AUTH_SCHEME_BASIC,
+                          kRealm2,
+                          HttpAuth::AUTH_SERVER));
+  cache.Add(origin, realm2_handler->realm(), realm2_handler->auth_scheme(),
             "Basic realm=Realm2", ASCIIToUTF16("realm2-user"),
             ASCIIToUTF16("realm2-password"), "/foo2/index.html");
 
   scoped_ptr<HttpAuthHandler> realm3_basic_handler(
-      new MockAuthHandler(kBasic, kRealm3, HttpAuth::AUTH_PROXY));
+      new MockAuthHandler(HttpAuth::AUTH_SCHEME_BASIC,
+                          kRealm3,
+                          HttpAuth::AUTH_PROXY));
   cache.Add(origin, realm3_basic_handler->realm(),
-            realm3_basic_handler->scheme(), "Basic realm=Realm3",
+            realm3_basic_handler->auth_scheme(), "Basic realm=Realm3",
             ASCIIToUTF16("realm3-basic-user"),
             ASCIIToUTF16("realm3-basic-password"), "");
 
   scoped_ptr<HttpAuthHandler> realm3_digest_handler(
-      new MockAuthHandler(kDigest, kRealm3, HttpAuth::AUTH_PROXY));
+      new MockAuthHandler(HttpAuth::AUTH_SCHEME_DIGEST,
+                          kRealm3,
+                          HttpAuth::AUTH_PROXY));
   cache.Add(origin, realm3_digest_handler->realm(),
-            realm3_digest_handler->scheme(), "Digest realm=Realm3",
+            realm3_digest_handler->auth_scheme(), "Digest realm=Realm3",
             ASCIIToUTF16("realm3-digest-user"),
             ASCIIToUTF16("realm3-digest-password"), "/baz/index.html");
 
   // There is no Realm4
-  entry = cache.Lookup(origin, kRealm4, kBasic);
+  entry = cache.Lookup(origin, kRealm4, HttpAuth::AUTH_SCHEME_BASIC);
   EXPECT_TRUE(NULL == entry);
 
   // While Realm3 does exist, the origin scheme is wrong.
   entry = cache.Lookup(GURL("https://www.google.com"), kRealm3,
-                       kBasic);
+                       HttpAuth::AUTH_SCHEME_BASIC);
   EXPECT_TRUE(NULL == entry);
 
   // Realm, origin scheme ok, authentication scheme wrong
-  entry = cache.Lookup(GURL("http://www.google.com"), kRealm1, kDigest);
+  entry = cache.Lookup
+      (GURL("http://www.google.com"), kRealm1, HttpAuth::AUTH_SCHEME_DIGEST);
   EXPECT_TRUE(NULL == entry);
 
   // Valid lookup by origin, realm, scheme.
-  entry = cache.Lookup(GURL("http://www.google.com:80"), kRealm3, kBasic);
+  entry = cache.Lookup(
+      GURL("http://www.google.com:80"), kRealm3, HttpAuth::AUTH_SCHEME_BASIC);
   ASSERT_FALSE(NULL == entry);
-  EXPECT_EQ(kBasic, entry->scheme());
+  EXPECT_EQ(HttpAuth::AUTH_SCHEME_BASIC, entry->scheme());
   EXPECT_EQ(kRealm3, entry->realm());
   EXPECT_EQ("Basic realm=Realm3", entry->auth_challenge());
   EXPECT_EQ(ASCIIToUTF16("realm3-basic-user"), entry->username());
   EXPECT_EQ(ASCIIToUTF16("realm3-basic-password"), entry->password());
 
   // Valid lookup by origin, realm, scheme when there's a duplicate
   // origin, realm in the cache
-  entry = cache.Lookup(GURL("http://www.google.com:80"), kRealm3, kDigest);
+  entry = cache.Lookup(
+      GURL("http://www.google.com:80"), kRealm3, HttpAuth::AUTH_SCHEME_DIGEST);
   ASSERT_FALSE(NULL == entry);
-  EXPECT_EQ(kDigest, entry->scheme());
+  EXPECT_EQ(HttpAuth::AUTH_SCHEME_DIGEST, entry->scheme());
   EXPECT_EQ(kRealm3, entry->realm());
   EXPECT_EQ("Digest realm=Realm3", entry->auth_challenge());
   EXPECT_EQ(ASCIIToUTF16("realm3-digest-user"), entry->username());
   EXPECT_EQ(ASCIIToUTF16("realm3-digest-password"), entry->password());
 
   // Valid lookup by realm.
-  entry = cache.Lookup(origin, kRealm2, kBasic);
+  entry = cache.Lookup(origin, kRealm2, HttpAuth::AUTH_SCHEME_BASIC);
   ASSERT_FALSE(NULL == entry);
-  EXPECT_EQ(kBasic, entry->scheme());
+  EXPECT_EQ(HttpAuth::AUTH_SCHEME_BASIC, entry->scheme());
   EXPECT_EQ(kRealm2, entry->realm());
   EXPECT_EQ("Basic realm=Realm2", entry->auth_challenge());
   EXPECT_EQ(ASCIIToUTF16("realm2-user"), entry->username());
   EXPECT_EQ(ASCIIToUTF16("realm2-password"), entry->password());
 
   // Check that subpaths are recognized.
-  HttpAuthCache::Entry* realm2_entry = cache.Lookup(origin, kRealm2, kBasic);
+  HttpAuthCache::Entry* realm2_entry = cache.Lookup(
+      origin, kRealm2, HttpAuth::AUTH_SCHEME_BASIC);
   EXPECT_FALSE(NULL == realm2_entry);
   // Positive tests:
   entry = cache.LookupByPath(origin, "/foo2/index.html");
   EXPECT_TRUE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "/foo2/foobar.html");
   EXPECT_TRUE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "/foo2/bar/index.html");
   EXPECT_TRUE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "/foo2/");
   EXPECT_TRUE(realm2_entry == entry);
 
   // Negative tests:
   entry = cache.LookupByPath(origin, "/foo2");
   EXPECT_FALSE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "/foo3/index.html");
   EXPECT_FALSE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "");
   EXPECT_FALSE(realm2_entry == entry);
   entry = cache.LookupByPath(origin, "/");
   EXPECT_FALSE(realm2_entry == entry);
 
   // Confirm we find the same realm, different auth scheme by path lookup
   HttpAuthCache::Entry* realm3_digest_entry =
-      cache.Lookup(origin, kRealm3, kDigest);
+      cache.Lookup(origin, kRealm3, HttpAuth::AUTH_SCHEME_DIGEST);
   EXPECT_FALSE(NULL == realm3_digest_entry);
   entry = cache.LookupByPath(origin, "/baz/index.html");
   EXPECT_TRUE(realm3_digest_entry == entry);
   entry = cache.LookupByPath(origin, "/baz/");
   EXPECT_TRUE(realm3_digest_entry == entry);
   entry = cache.LookupByPath(origin, "/baz");
   EXPECT_FALSE(realm3_digest_entry == entry);
 
   // Confirm we find the same realm, different auth scheme by path lookup
   HttpAuthCache::Entry* realm3DigestEntry =
-      cache.Lookup(origin, kRealm3, kDigest);
+      cache.Lookup(origin, kRealm3, HttpAuth::AUTH_SCHEME_DIGEST);
   EXPECT_FALSE(NULL == realm3DigestEntry);
   entry = cache.LookupByPath(origin, "/baz/index.html");
   EXPECT_TRUE(realm3DigestEntry == entry);
   entry = cache.LookupByPath(origin, "/baz/");
   EXPECT_TRUE(realm3DigestEntry == entry);
   entry = cache.LookupByPath(origin, "/baz");
   EXPECT_FALSE(realm3DigestEntry == entry);
 
   // Lookup using empty path (may be used for proxy).
   entry = cache.LookupByPath(origin, "");
   EXPECT_FALSE(NULL == entry);
-  EXPECT_EQ(kBasic, entry->scheme());
+  EXPECT_EQ(HttpAuth::AUTH_SCHEME_BASIC, entry->scheme());
   EXPECT_EQ(kRealm3, entry->realm());
 }
 
 TEST(HttpAuthCacheTest, AddPath) {
   HttpAuthCache::Entry entry;
 
   // All of these paths have a common root /1/2/2/4/5/
   entry.AddPath("/1/2/3/4/5/x.txt");
   entry.AddPath("/1/2/3/4/5/y.txt");
   entry.AddPath("/1/2/3/4/5/z.txt");
@@ skipping 23 matching lines @@
 }
 
 // Calling Add when the realm entry already exists, should append that
 // path.
 TEST(HttpAuthCacheTest, AddToExistingEntry) {
   HttpAuthCache cache;
   GURL origin("http://www.foobar.com:70");
   const std::string auth_challenge = "Basic realm=MyRealm";
 
   scoped_ptr<HttpAuthHandler> handler(
-      new MockAuthHandler(kBasic, "MyRealm", HttpAuth::AUTH_SERVER));
-
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_BASIC, "MyRealm", HttpAuth::AUTH_SERVER));
   HttpAuthCache::Entry* orig_entry = cache.Add(
-      origin, handler->realm(), handler->scheme(), auth_challenge,
+      origin, handler->realm(), handler->auth_scheme(), auth_challenge,
       ASCIIToUTF16("user1"), ASCIIToUTF16("password1"), "/x/y/z/");
-  cache.Add(origin, handler->realm(), handler->scheme(), auth_challenge,
+  cache.Add(origin, handler->realm(), handler->auth_scheme(), auth_challenge,
             ASCIIToUTF16("user2"), ASCIIToUTF16("password2"), "/z/y/x/");
-  cache.Add(origin, handler->realm(), handler->scheme(), auth_challenge,
+  cache.Add(origin, handler->realm(), handler->auth_scheme(), auth_challenge,
             ASCIIToUTF16("user3"), ASCIIToUTF16("password3"), "/z/y");
 
-  HttpAuthCache::Entry* entry = cache.Lookup(origin, "MyRealm", kBasic);
+  HttpAuthCache::Entry* entry = cache.Lookup(
+      origin, "MyRealm", HttpAuth::AUTH_SCHEME_BASIC);
 
   EXPECT_TRUE(entry == orig_entry);
   EXPECT_EQ(ASCIIToUTF16("user3"), entry->username());
   EXPECT_EQ(ASCIIToUTF16("password3"), entry->password());
 
   EXPECT_EQ(2U, entry->paths_.size());
   EXPECT_EQ("/z/", entry->paths_.front());
   EXPECT_EQ("/x/y/z/", entry->paths_.back());
 }
 
 TEST(HttpAuthCacheTest, Remove) {
   GURL origin("http://foobar2.com");
 
   scoped_ptr<HttpAuthHandler> realm1_handler(
-      new MockAuthHandler(kBasic, kRealm1, HttpAuth::AUTH_SERVER));
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_BASIC, kRealm1, HttpAuth::AUTH_SERVER));
 
   scoped_ptr<HttpAuthHandler> realm2_handler(
-      new MockAuthHandler(kBasic, kRealm2, HttpAuth::AUTH_SERVER));
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_BASIC, kRealm2, HttpAuth::AUTH_SERVER));
 
   scoped_ptr<HttpAuthHandler> realm3_basic_handler(
-      new MockAuthHandler(kBasic, kRealm3, HttpAuth::AUTH_SERVER));
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_BASIC, kRealm3, HttpAuth::AUTH_SERVER));
 
   scoped_ptr<HttpAuthHandler> realm3_digest_handler(
-      new MockAuthHandler(kDigest, kRealm3, HttpAuth::AUTH_SERVER));
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_DIGEST, kRealm3, HttpAuth::AUTH_SERVER));
 
   HttpAuthCache cache;
-  cache.Add(origin, realm1_handler->realm(), realm1_handler->scheme(),
+  cache.Add(origin, realm1_handler->realm(), realm1_handler->auth_scheme(),
             "basic realm=Realm1", kAlice, k123, "/");
-  cache.Add(origin, realm2_handler->realm(), realm2_handler->scheme(),
+  cache.Add(origin, realm2_handler->realm(), realm2_handler->auth_scheme(),
             "basic realm=Realm2", ASCIIToUTF16("bob"), ASCIIToUTF16("princess"),
             "/");
   cache.Add(origin, realm3_basic_handler->realm(),
-            realm3_basic_handler->scheme(), "basic realm=Realm3",
+            realm3_basic_handler->auth_scheme(), "basic realm=Realm3",
             kAdmin, kPassword, "/");
   cache.Add(origin, realm3_digest_handler->realm(),
-            realm3_digest_handler->scheme(), "digest realm=Realm3",
+            realm3_digest_handler->auth_scheme(), "digest realm=Realm3",
             kRoot, kWileCoyote, "/");
 
   // Fails, because there is no realm "Realm4".
-  EXPECT_FALSE(cache.Remove(origin, kRealm4, kBasic, kAlice, k123));
+  EXPECT_FALSE(cache.Remove(
+      origin, kRealm4, HttpAuth::AUTH_SCHEME_BASIC, kAlice, k123));
 
   // Fails because the origin is wrong.
-  EXPECT_FALSE(cache.Remove(
-      GURL("http://foobar2.com:100"), kRealm1, kBasic, kAlice, k123));
+  EXPECT_FALSE(cache.Remove(GURL("http://foobar2.com:100"),
+                            kRealm1,
+                            HttpAuth::AUTH_SCHEME_BASIC,
+                            kAlice,
+                            k123));
 
   // Fails because the username is wrong.
-  EXPECT_FALSE(cache.Remove(origin, kRealm1, kBasic, kAlice2, k123));
+  EXPECT_FALSE(cache.Remove(
+      origin, kRealm1, HttpAuth::AUTH_SCHEME_BASIC, kAlice2, k123));
 
   // Fails because the password is wrong.
-  EXPECT_FALSE(cache.Remove(origin, kRealm1, kBasic, kAlice, k1234));
+  EXPECT_FALSE(cache.Remove(
+      origin, kRealm1, HttpAuth::AUTH_SCHEME_BASIC, kAlice, k1234));
 
   // Fails because the authentication type is wrong.
-  EXPECT_FALSE(cache.Remove(origin, kRealm1, kDigest, kAlice, k123));
+  EXPECT_FALSE(cache.Remove(
+      origin, kRealm1, HttpAuth::AUTH_SCHEME_DIGEST, kAlice, k123));
 
   // Succeeds.
-  EXPECT_TRUE(cache.Remove(origin, kRealm1, kBasic, kAlice, k123));
+  EXPECT_TRUE(cache.Remove(
+      origin, kRealm1, HttpAuth::AUTH_SCHEME_BASIC, kAlice, k123));
 
   // Fails because we just deleted the entry!
-  EXPECT_FALSE(cache.Remove(origin, kRealm1, kBasic, kAlice, k123));
+  EXPECT_FALSE(cache.Remove(
+      origin, kRealm1, HttpAuth::AUTH_SCHEME_BASIC, kAlice, k123));
 
   // Succeed when there are two authentication types for the same origin,realm.
-  EXPECT_TRUE(cache.Remove(origin, kRealm3, kDigest, kRoot, kWileCoyote));
+  EXPECT_TRUE(cache.Remove(
+      origin, kRealm3, HttpAuth::AUTH_SCHEME_DIGEST, kRoot, kWileCoyote));
 
   // Succeed as above, but when entries were added in opposite order
   cache.Add(origin, realm3_digest_handler->realm(),
-            realm3_digest_handler->scheme(), "digest realm=Realm3",
+            realm3_digest_handler->auth_scheme(), "digest realm=Realm3",
             kRoot, kWileCoyote, "/");
-  EXPECT_TRUE(cache.Remove(origin, kRealm3, kBasic, kAdmin, kPassword));
+  EXPECT_TRUE(cache.Remove(
+      origin, kRealm3, HttpAuth::AUTH_SCHEME_BASIC, kAdmin, kPassword));
 
   // Make sure that removing one entry still leaves the other available for
   // lookup.
-  HttpAuthCache::Entry* entry = cache.Lookup(origin, kRealm3, kDigest);
+  HttpAuthCache::Entry* entry = cache.Lookup(
+      origin, kRealm3, HttpAuth::AUTH_SCHEME_DIGEST);
   EXPECT_FALSE(NULL == entry);
 }
 
 TEST(HttpAuthCacheTest, UpdateStaleChallenge) {
   HttpAuthCache cache;
   GURL origin("http://foobar2.com");
   scoped_ptr<HttpAuthHandler> digest_handler(
-      new MockAuthHandler(kDigest, kRealm1, HttpAuth::AUTH_PROXY));
+      new MockAuthHandler(
+          HttpAuth::AUTH_SCHEME_DIGEST, kRealm1, HttpAuth::AUTH_PROXY));
   HttpAuthCache::Entry* entry_pre = cache.Add(
       origin,
       digest_handler->realm(),
-      digest_handler->scheme(),
+      digest_handler->auth_scheme(),
       "Digest realm=Realm1,"
       "nonce=\"s3MzvFhaBAA=4c520af5acd9d8d7ae26947529d18c8eae1e98f4\"",
       ASCIIToUTF16("realm-digest-user"),
       ASCIIToUTF16("realm-digest-password"),
       "/baz/index.html");
   ASSERT_TRUE(entry_pre != NULL);
 
   EXPECT_EQ(2, entry_pre->IncrementNonceCount());
   EXPECT_EQ(3, entry_pre->IncrementNonceCount());
   EXPECT_EQ(4, entry_pre->IncrementNonceCount());
 
   bool update_success = cache.UpdateStaleChallenge(
       origin,
       digest_handler->realm(),
-      digest_handler->scheme(),
+      digest_handler->auth_scheme(),
       "Digest realm=Realm1,"
       "nonce=\"claGgoRXBAA=7583377687842fdb7b56ba0555d175baa0b800e3\","
       "stale=\"true\"");
   EXPECT_TRUE(update_success);
 
   // After the stale update, the entry should still exist in the cache and
   // the nonce count should be reset to 0.
   HttpAuthCache::Entry* entry_post = cache.Lookup(
       origin,
       digest_handler->realm(),
-      digest_handler->scheme());
+      digest_handler->auth_scheme());
   ASSERT_TRUE(entry_post != NULL);
   EXPECT_EQ(2, entry_post->IncrementNonceCount());
 
   // UpdateStaleChallenge will fail if an entry doesn't exist in the cache.
   bool update_failure = cache.UpdateStaleChallenge(
       origin,
       kRealm2,
-      digest_handler->scheme(),
+      digest_handler->auth_scheme(),
       "Digest realm=Realm2,"
       "nonce=\"claGgoRXBAA=7583377687842fdb7b56ba0555d175baa0b800e3\","
       "stale=\"true\"");
   EXPECT_FALSE(update_failure);
 }
 
 // Test fixture class for eviction tests (contains helpers for bulk
 // insertion and existence testing).
 class HttpAuthCacheEvictionTest : public testing::Test {
  protected:
   HttpAuthCacheEvictionTest() : origin_("http://www.google.com") { }
 
   std::string GenerateRealm(int realm_i) {
     return base::StringPrintf("Realm %d", realm_i);
   }
 
   std::string GeneratePath(int realm_i, int path_i) {
     return base::StringPrintf("/%d/%d/x/y", realm_i, path_i);
   }
 
   void AddRealm(int realm_i) {
     AddPathToRealm(realm_i, 0);
   }
 
   void AddPathToRealm(int realm_i, int path_i) {
-    cache_.Add(origin_, GenerateRealm(realm_i), kBasic, "",
+    cache_.Add(origin_, GenerateRealm(realm_i), HttpAuth::AUTH_SCHEME_BASIC, "",
                kUsername, kPassword, GeneratePath(realm_i, path_i));
   }
 
   void CheckRealmExistence(int realm_i, bool exists) {
     const HttpAuthCache::Entry* entry =
-        cache_.Lookup(origin_, GenerateRealm(realm_i), kBasic);
+        cache_.Lookup(
+            origin_, GenerateRealm(realm_i), HttpAuth::AUTH_SCHEME_BASIC);
     if (exists) {
       EXPECT_FALSE(entry == NULL);
       EXPECT_EQ(GenerateRealm(realm_i), entry->realm());
     } else {
       EXPECT_TRUE(entry == NULL);
     }
   }
 
   void CheckPathExistence(int realm_i, int path_i, bool exists) {
     const HttpAuthCache::Entry* entry =
@@ skipping 50 matching lines @@
     CheckPathExistence(0, i, false);
 
   for (int i = 0; i < kMaxPaths; ++i)
     CheckPathExistence(0, i + 3, true);
 
   for (int i = 0; i < kMaxRealms; ++i)
     CheckRealmExistence(i, true);
 }
 
 }  // namespace net