Moved BrowsingDataCounter and part of BrowsingDataCounterUtils to components.

chrome/browser/browsing_data/hosted_apps_counter.cc

 // Copyright 2016 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/hosted_apps_counter.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/memory/ptr_util.h"
 #include "chrome/common/pref_names.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension.h"
 
-HostedAppsCounter::HostedAppsCounter()
-    : pref_name_(prefs::kDeleteHostedAppsData) {}
+HostedAppsCounter::HostedAppsCounter(Profile* profile)
+    : BrowsingDataCounter(prefs::kDeleteHostedAppsData), profile_(profile) {}
 
 HostedAppsCounter::~HostedAppsCounter() {}
 
-const std::string& HostedAppsCounter::GetPrefName() const {
-  return pref_name_;
-}
-
 void HostedAppsCounter::Count() {
   int count = 0;
   std::vector<std::string> names;
 
   std::unique_ptr<extensions::ExtensionSet> extensions =
-      extensions::ExtensionRegistry::Get(GetProfile())
+      extensions::ExtensionRegistry::Get(profile_)
           ->GenerateInstalledExtensionsSet();
 
   for (const auto& extension : *extensions) {
     if (extension->is_hosted_app())
       names.push_back(extension->short_name());
   }
 
   count = names.size();
 
   // Give the first two names (alphabetically) as examples.
   std::sort(names.begin(), names.end());
   names.resize(std::min<size_t>(2u, names.size()));
 
   ReportResult(base::WrapUnique(new HostedAppsResult(this, count, names)));
 }
 
 // HostedAppsCounter::HostedAppsResult -----------------------------------------
 
 HostedAppsCounter::HostedAppsResult::HostedAppsResult(
     const HostedAppsCounter* source,
     ResultInt num_apps,
     const std::vector<std::string>& examples)
     : FinishedResult(source, num_apps), examples_(examples) {}
 
 HostedAppsCounter::HostedAppsResult::~HostedAppsResult() {}