Revert 182127, reenabled on trunk.

> Disabled help page than shown when USB printer connected.
> 
> Need time to address privacy issues.
> 
> BUG=175941
> TBR=keybuk
> 
> Review URL: https://codereview.chromium.org/12251017

TBR=vitalybuka@chromium.org

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182257 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/dbus/cros_dbus_service.cc

@@ -112,8 +112,7 @@ void CrosDBusService::Initialize() {
     CrosDBusServiceImpl* service = new CrosDBusServiceImpl(bus);
     service->RegisterServiceProvider(ProxyResolutionServiceProvider::Create());
     service->RegisterServiceProvider(new LivenessServiceProvider);
-    // TODO(vitalybuka): Re-enable after addressing privacy issues.
-    // service->RegisterServiceProvider(new PrinterServiceProvider);
+    service->RegisterServiceProvider(new PrinterServiceProvider);
     g_cros_dbus_service = service;
     service->Start();
   } else {