Implement GetBrowsingDataRemoverDelegate() for BrowserContext subclasses

chrome/browser/browsing_data/chrome_browsing_data_remover_delegate_unittest.cc

 // Copyright 2017 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/browsing_data/chrome_browsing_data_remover_delegate.h"
 
 #include "base/guid.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 733 matching lines @@
 
   content::MockDownloadManager* download_manager() { return download_manager_; }
 
  private:
   content::MockDownloadManager* download_manager_;  // Owned by testing profile.
   ChromeDownloadManagerDelegate chrome_download_manager_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoveDownloadsTester);
 };
 
-// TestingProfile does not contain ChromeBrowsingDataRemoverDelegate. Add it
-// for the purpose of this test.
-class TestingProfileWithDelegate : public TestingProfile {
- public:
-  TestingProfileWithDelegate() : delegate_(this) {}
-
-  content::BrowsingDataRemoverDelegate* GetBrowsingDataRemoverDelegate()
-      override {
-    return &delegate_;
-  }
-
- private:
-  ChromeBrowsingDataRemoverDelegate delegate_;
-};
-
 }  // namespace
 
 // RemoveAutofillTester is not a part of the anonymous namespace above, as
 // PersonalDataManager declares it a friend in an empty namespace.
 class RemoveAutofillTester : public autofill::PersonalDataManagerObserver {
  public:
   explicit RemoveAutofillTester(TestingProfile* profile)
       : personal_data_manager_(
             autofill::PersonalDataManagerFactory::GetForProfile(profile)) {
     autofill::test::DisableSystemServices(profile->GetPrefs());
@@ skipping 74 matching lines @@
 
   autofill::PersonalDataManager* personal_data_manager_;
   DISALLOW_COPY_AND_ASSIGN(RemoveAutofillTester);
 };
 
 // Test Class -----------------------------------------------------------------
 
 class ChromeBrowsingDataRemoverDelegateTest : public testing::Test {
  public:
   ChromeBrowsingDataRemoverDelegateTest()
-      : profile_(new TestingProfileWithDelegate()),
+      : profile_(new TestingProfile()),
         clear_domain_reliability_tester_(profile_.get()) {
     remover_ = content::BrowserContext::GetBrowsingDataRemover(profile_.get());
 
 #if defined(OS_ANDROID)
     static_cast<ChromeBrowsingDataRemoverDelegate*>(
         profile_->GetBrowsingDataRemoverDelegate())
         ->OverrideWebappRegistryForTesting(
             base::WrapUnique<WebappRegistry>(new TestWebappRegistry()));
 #endif
   }
@@ skipping 1139 matching lines @@
   EXPECT_FALSE(Match(kOrigin1, kProtected, nullptr));
   EXPECT_FALSE(Match(kOriginExt, kProtected, nullptr));
   EXPECT_FALSE(Match(kOriginDevTools, kProtected, nullptr));
 
 #if BUILDFLAG(ENABLE_EXTENSIONS)
   EXPECT_FALSE(Match(kOrigin1, kExtension, nullptr));
   EXPECT_TRUE(Match(kOriginExt, kExtension, nullptr));
   EXPECT_FALSE(Match(kOriginDevTools, kExtension, nullptr));
 #endif
 }