Remove non-const version of GetDefaultSearchProvider() and make all callers call the const version

chrome/browser/profile_resetter/profile_resetter_unittest.cc

 // Copyright (c) 2013 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/profile_resetter/profile_resetter.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 420 matching lines @@
 TEST_F(ProfileResetterTest, ResetNothing) {
   // The callback should be called even if there is nothing to reset.
   ResetAndWait(0);
 }
 
 TEST_F(ProfileResetterTest, ResetDefaultSearchEngineNonOrganic) {
   ResetAndWait(ProfileResetter::DEFAULT_SEARCH_ENGINE, kDistributionConfig);
 
   TemplateURLService* model =
       TemplateURLServiceFactory::GetForProfile(profile());
-  TemplateURL* default_engine = model->GetDefaultSearchProvider();
+  const TemplateURL* default_engine = model->GetDefaultSearchProvider();
   ASSERT_NE(static_cast<TemplateURL*>(NULL), default_engine);
   EXPECT_EQ(base::ASCIIToUTF16("first"), default_engine->short_name());
   EXPECT_EQ(base::ASCIIToUTF16("firstkey"), default_engine->keyword());
   EXPECT_EQ("http://www.foo.com/s?q={searchTerms}", default_engine->url());
 }
 
 TEST_F(ProfileResetterTest, ResetDefaultSearchEnginePartially) {
   // Search engine's logic is tested by
   // TemplateURLServiceTest.RepairPrepopulatedSearchEngines.
   // Make sure TemplateURLService has loaded.
@@ skipping 602 matching lines @@
       new ResettableSettingsSnapshot(profile()));
   deleted_snapshot->RequestShortcuts(base::Bind(&FeedbackCapture::Fail,
                                                 base::Unretained(&capture)));
   deleted_snapshot.reset();
   // Running remaining tasks shouldn't trigger the callback to be called as
   // |deleted_snapshot| was deleted before it could run.
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace