[sync] Add hooks to allow for testing sync credential caching in the presence of strange singleton …

chrome/browser/sync/credential_cache_service_win.cc

 // Copyright (c) 2012 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 "chrome/browser/sync/credential_cache_service_win.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/base64.h"
+#include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
 #include "base/string_number_conversions.h"
 #include "base/time.h"
 #include "base/values.h"
 #include "base/win/windows_version.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/signin/token_service.h"
 #include "chrome/browser/signin/token_service_factory.h"
+#include "chrome/browser/sync/credential_cache_service_factory_win.h"
 #include "chrome/browser/sync/glue/chrome_encryptor.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths_internal.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/net/gaia/gaia_auth_consumer.h"
 #include "chrome/common/net/gaia/gaia_constants.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "sync/internal_api/public/base/model_type.h"
 
 namespace syncer {
 
@@ skipping 560 matching lines @@
   // the sync credential path in the default Metro profile is
   // "%Appdata%\Local\Google\Chrome\Metro\User Data\Default\Sync Credentials".
   DCHECK(profile_);
   return profile_->GetPath().Append(chrome::kSyncCredentialsFilename);
 }
 
 FilePath CredentialCacheService::GetCredentialPathInAlternateProfile() const {
   DCHECK(profile_);
   FilePath alternate_user_data_dir;
   chrome::GetAlternateUserDataDirectory(&alternate_user_data_dir);
+
+  // TODO(rsimha): This code path is to allow for testing in the presence of
+  // strange singleton mode. Delete this block before shipping.
+  // See http://crbug.com/144280.
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(switches::kEnableSyncCredentialCaching) &&
+      !CredentialCacheServiceFactory::IsDefaultProfile(profile_)) {
+    DCHECK(CredentialCacheServiceFactory::IsDefaultAlternateProfileForTest(
+               profile_));
+    chrome::GetDefaultUserDataDirectory(&alternate_user_data_dir);
+  }
+
   FilePath alternate_default_profile_dir =
       ProfileManager::GetDefaultProfileDir(alternate_user_data_dir);
   return alternate_default_profile_dir.Append(chrome::kSyncCredentialsFilename);
 }
 
 void CredentialCacheService::InitializeLocalCredentialCacheWriter() {
   local_store_ = new JsonPrefStore(
       GetCredentialPathInCurrentProfile(),
       content::BrowserThread::GetMessageLoopProxyForThread(
           content::BrowserThread::FILE));
@@ skipping 212 matching lines @@
          !HasUserSignedOut() &&
          !alternate_google_services_username.empty() &&
          !alternate_lsid.empty() &&
          !alternate_sid.empty() &&
          !(alternate_encryption_bootstrap_token.empty() &&
            alternate_keystore_encryption_bootstrap_token.empty()) &&
          !service->setup_in_progress();
 }
 
 }  // namespace syncer