Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/api/settings_overrides/settings_overrides_browsertest.cc

 // Copyright 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 "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/prefs/session_startup_pref.h"
@@ skipping 17 matching lines @@
                    base::Unretained(this)));
     service->Load();
   }
   ~TemplateURLServiceObserver() {}
 
  private:
   void StopLoop() {
     runner_->Quit();
   }
   base::RunLoop* runner_;
-  scoped_ptr<TemplateURLService::Subscription> template_url_sub_;
+  std::unique_ptr<TemplateURLService::Subscription> template_url_sub_;
 
   DISALLOW_COPY_AND_ASSIGN(TemplateURLServiceObserver);
 };
 
 testing::AssertionResult VerifyTemplateURLServiceLoad(
     TemplateURLService* service) {
   if (service->loaded())
     return testing::AssertionSuccess();
   base::RunLoop runner;
   TemplateURLServiceObserver observer(service, &runner);
@@ skipping 77 matching lines @@
   ASSERT_TRUE(extension);
   ASSERT_EQ(1u, extension->install_warnings().size());
   EXPECT_EQ(std::string(
                 "'chrome_settings_overrides' "
                 "is not allowed for specified platform."),
             extension->install_warnings().front().message);
 #endif
 }
 
 }  // namespace