Move CaptivePortalDetector to src/components/captive_portal

chrome/browser/captive_portal/captive_portal_service_factory.cc

Index: chrome/browser/captive_portal/captive_portal_service_factory.cc
diff --git a/chrome/browser/captive_portal/captive_portal_service_factory.cc b/chrome/browser/captive_portal/captive_portal_service_factory.cc
index a7ac143fba42d2905a34a38733b17de9282d2739..b64f94488bfb7af494da2dcb4862666780b1ef15 100644
--- a/chrome/browser/captive_portal/captive_portal_service_factory.cc
+++ b/chrome/browser/captive_portal/captive_portal_service_factory.cc
@@ -9,8 +9,6 @@
 #include "chrome/browser/profiles/profile.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 
-namespace captive_portal {
-
 // static
 CaptivePortalService* CaptivePortalServiceFactory::GetForProfile(
     Profile* profile) {
@@ -41,5 +39,3 @@ content::BrowserContext* CaptivePortalServiceFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextOwnInstanceInIncognito(context);
 }
-
-}  // namespace captive_portal