Moved BrowsingDataCounter and part of BrowsingDataCounterUtils to components.

chrome/browser/browsing_data/hosted_apps_counter.cc

Index: chrome/browser/browsing_data/hosted_apps_counter.cc
diff --git a/chrome/browser/browsing_data/hosted_apps_counter.cc b/chrome/browser/browsing_data/hosted_apps_counter.cc
index 4904ca83eeb74fd4e42d017f22a11e199cf4e2c0..320591061b41f30c5a345fcfff38e5bb28b8c98e 100644
--- a/chrome/browser/browsing_data/hosted_apps_counter.cc
+++ b/chrome/browser/browsing_data/hosted_apps_counter.cc
@@ -12,21 +12,17 @@
 #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) {