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

chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc

Index: chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc
diff --git a/chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc b/chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc
index 5a98689e3edc58f894cd2afce304e86f9ceb79a3..54fd804760ab9199c9a80c86834538852012bd41 100644
--- a/chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_service_browsertest.cc
@@ -89,9 +89,6 @@ class FakeSafeBrowsingService : public SafeBrowsingService {
     // Makes sure the auto update is not triggered. The tests will force the
     // update when needed.
     config.disable_auto_update = true;
-#if defined(OS_ANDROID)
-    config.disable_connection_check = true;
-#endif
     config.client_name = "browser_tests";
     return config;
   }