Use the DefaultSearchManager as the exclusive authority on DSE, ignoring Web Data.

chrome/browser/ui/omnibox/omnibox_view_browsertest.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 <stdio.h>
 
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ skipping 223 matching lines @@
 
   void SetupSearchEngine() {
     Profile* profile = browser()->profile();
     TemplateURLService* model =
         TemplateURLServiceFactory::GetForProfile(profile);
     ASSERT_TRUE(model);
 
     ui_test_utils::WaitForTemplateURLServiceToLoad(model);
 
     ASSERT_TRUE(model->loaded());
-    // Remove built-in template urls, like google.com, bing.com etc., as they
-    // may appear as autocomplete suggests and interfere with our tests.
-    model->SetUserSelectedDefaultSearchProvider(NULL);
-    TemplateURLService::TemplateURLVector builtins = model->GetTemplateURLs();
-    for (TemplateURLService::TemplateURLVector::const_iterator
-         i = builtins.begin(); i != builtins.end(); ++i)
-      model->Remove(*i);
 
     TemplateURLData data;
     data.short_name = ASCIIToUTF16(kSearchShortName);
     data.SetKeyword(ASCIIToUTF16(kSearchKeyword));
     data.SetURL(kSearchURL);
     TemplateURL* template_url = new TemplateURL(profile, data);
     model->Add(template_url);
     model->SetUserSelectedDefaultSearchProvider(template_url);
 
     data.SetKeyword(ASCIIToUTF16(kSearchKeyword2));
     model->Add(new TemplateURL(profile, data));
+
+    // Remove built-in template urls, like google.com, bing.com etc., as they
+    // may appear as autocomplete suggests and interfere with our tests.
+    TemplateURLService::TemplateURLVector urls = model->GetTemplateURLs();
+    for (TemplateURLService::TemplateURLVector::const_iterator i = urls.begin();
+         i != urls.end();
+         ++i) {
+      if ((*i)->prepopulate_id() != 0)
+        model->Remove(*i);
+    }
   }
 
   void AddHistoryEntry(const TestHistoryEntry& entry, const Time& time) {
     Profile* profile = browser()->profile();
     HistoryService* history_service = HistoryServiceFactory::GetForProfile(
         profile, Profile::EXPLICIT_ACCESS);
     ASSERT_TRUE(history_service);
 
     if (!history_service->BackendLoaded()) {
       content::NotificationRegistrar registrar;
@@ skipping 1510 matching lines @@
   omnibox_view->Update();
   EXPECT_EQ(url_c, omnibox_view->GetText());
 }
 
 IN_PROC_BROWSER_TEST_F(OmniboxViewTest, EscDisablesSearchTermReplacement) {
   browser()->toolbar_model()->set_url_replacement_enabled(true);
   chrome::FocusLocationBar(browser());
   ASSERT_NO_FATAL_FAILURE(SendKey(ui::VKEY_ESCAPE, 0));
   EXPECT_FALSE(browser()->toolbar_model()->url_replacement_enabled());
 }