[omnibox] Enable fakebox strong demotion by default.

In preparation for launching to all channels in finch.

Change-Id: I581f451ba7e6852df056d785ba824c8d75c7dc31
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1888125Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: manuk hovanesian <manukh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710518}

components/omnibox/browser/omnibox_field_trial.cc

@@ -295,15 +295,14 @@ void OmniboxFieldTrial::GetDemotionsByType(
     // enough to be inline autocompleted (1400+), even after demotion it will
     // score above 850 ( 1400 * 0.61 > 850).  850 is the maximum score for
     // queries when the input has been detected as URL-seeking.
-    constexpr char kDemoteURLs[] = "1:61,2:61,3:61,4:61,16:61,24:61";
 #if defined(OS_ANDROID)
     if (current_page_classification == OmniboxEventProto::
         SEARCH_RESULT_PAGE_NO_SEARCH_TERM_REPLACEMENT)
-      demotion_rule = kDemoteURLs;
+      demotion_rule = "1:61,2:61,3:61,4:61,16:61,24:61";
 #endif
     if (current_page_classification ==
         OmniboxEventProto::INSTANT_NTP_WITH_FAKEBOX_AS_STARTING_FOCUS)
-      demotion_rule = kDemoteURLs;
+      demotion_rule = "1:10,2:10,3:10,4:10,5:10,16:10,17:10,24:10";
   }
 
   // The value of the DemoteByType rule is a comma-separated list of