The login dialog was being opened with the main browser window as a parent in...

chrome/browser/sync/profile_sync_service.cc

 // Copyright (c) 2006-2008 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.
 
 #ifdef CHROME_PERSONALIZATION
 #include "chrome/browser/sync/profile_sync_service.h"
 
 #include <stack>
 #include <vector>
 
@@ skipping 133 matching lines @@
     model_associator_ = NULL;
   }
 
   // Clear various flags.
   is_auth_in_progress_ = false;
   backend_initialized_ = false;
   expecting_first_run_auth_needed_event_ = false;
   last_attempted_user_email_.clear();
 }
 
-void ProfileSyncService::EnableForUser() {
+void ProfileSyncService::EnableForUser(gfx::NativeWindow parent_window) {
   if (WizardIsVisible()) {
     // TODO(timsteele): Focus wizard.
     return;
   }
+  wizard_parent_window_ = parent_window;
   expecting_first_run_auth_needed_event_ = true;
 
   StartUp();
   FOR_EACH_OBSERVER(Observer, observers_, OnStateChanged());
 }
 
 void ProfileSyncService::DisableForUser() {
   if (WizardIsVisible()) {
     // TODO(timsteele): Focus wizard.
     return;
@@ skipping 90 matching lines @@
     UMA_HISTOGRAM_TIMES("Sync.AuthorizationTimeInNetwork",
                     base::TimeTicks::Now() - auth_start_time_);
     auth_start_time_ = base::TimeTicks();
   }
 
   is_auth_in_progress_ = false;
   // Fan the notification out to interested UI-thread components.
   FOR_EACH_OBSERVER(Observer, observers_, OnStateChanged());
 }
 
-void ProfileSyncService::ShowLoginDialog() {
+void ProfileSyncService::ShowLoginDialog(gfx::NativeWindow parent_window) {
   if (WizardIsVisible())
     return;
 
+  wizard_parent_window_ = parent_window;
+
   if (!auth_error_time_.is_null()) {
     UMA_HISTOGRAM_LONG_TIMES("Sync.ReauthorizationTime",
                              base::TimeTicks::Now() - auth_error_time_);
     auth_error_time_ = base::TimeTicks();  // Reset auth_error_time_ to null.
   }
 
   if (last_auth_error_ != AUTH_ERROR_NONE) {
     wizard_.Step(SyncSetupWizard::GAIA_LOGIN);
   }
 }
@@ skipping 139 matching lines @@
 }
 
 bool ProfileSyncService::ShouldPushChanges() {
   // True only after all bootstrapping has succeeded: the bookmark model is
   // loaded, the sync backend is initialized, the two domains are
   // consistent with one another, and no unrecoverable error has transpired.
   return change_processor_->IsRunning();
 }
 
 #endif  // CHROME_PERSONALIZATION