Update component updater URLs.

components/component_updater/component_updater_url_constants.cc

Index: components/component_updater/component_updater_url_constants.cc
diff --git a/components/component_updater/component_updater_url_constants.cc b/components/component_updater/component_updater_url_constants.cc
index c762cc91d9bef5ca0f0817f66887b68ccc4b1116..754f83394e15b2bccb4475dbf5606e2844a74447 100644
--- a/components/component_updater/component_updater_url_constants.cc
+++ b/components/component_updater/component_updater_url_constants.cc
@@ -18,4 +18,9 @@ const char kUpdaterDefaultUrl[] = "https://clients2.google.com/service/update2";
 
 const char kUpdaterFallbackUrl[] = "http://clients2.google.com/service/update2";
 
+const char kUpdaterDefaultUrlAlt[] =

[rkaplow, 2017/01/27 17:28:38]

nit, I'd call it it AltUrl so it ends with Url but maybe that's just me

[waffles, 2017/01/27 18:14:36]

I see the point but I have a preference to just add a suffix; makes it easier to
search. Let me know if you feel strongly.

+    "https://update.googleapis.com/service/update2";
+
+const char kUpdaterFallbackUrlAlt[] =
+    "http://update.googleapis.com/service/update2";
 }  // namespace component_updater