Remove safe_browsing=2 functionality, replace with =3 mode.

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index 0ad1af73d60fc20bc130d1861104d2b9c797c8ac..be5154d9fc0b8b56cc11e3984b1f6f807a630738 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -386,12 +386,10 @@ void ProfileImplIOData::Handle::LazyInitialize() const {
       prefs::kRestoreOnStartup, pref_service);
   io_data_->session_startup_pref()->MoveToThread(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
-#if defined(SAFE_BROWSING_SERVICE)
   io_data_->safe_browsing_enabled()->Init(prefs::kSafeBrowsingEnabled,
       pref_service);
   io_data_->safe_browsing_enabled()->MoveToThread(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
-#endif
   io_data_->InitializeOnUIThread(profile_);
 }