Ntp: use AMP urls for content suggestions when available.

components/ntp_snippets/features.cc

Index: components/ntp_snippets/features.cc
diff --git a/components/ntp_snippets/features.cc b/components/ntp_snippets/features.cc
index 085257bc24d4cb05859a7827ee3313290e0dbfc7..03cfbc3bf45f0831f3d6c9836aa39d7f2e8254df 100644
--- a/components/ntp_snippets/features.cc
+++ b/components/ntp_snippets/features.cc
@@ -41,4 +41,7 @@ const base::Feature kForeignSessionsSuggestionsFeature{
 const base::Feature kFetchMoreFeature{"NTPSuggestionsFetchMore",
                                       base::FEATURE_ENABLED_BY_DEFAULT};
 
+const base::Feature kPreferAmpUrlsFeature{"NTPPreferAmpUrls",

[Bernhard Bauer, 2016/12/20 15:42:49]

Nit: If we capitalize the full acronym in NTP, we should do the same thing for
AMP, or do it for neither (but that would require changing the other instances
as well, for consistency).

[Michael van Ouwerkerk, 2016/12/20 15:51:00]

I think "NTP" is the anomaly here, and we should keep it for consistency with
existing code. I would not want to write these as "kPreferAMPURLsFeature" and
"NTPPreferAMPURLs".

+                                          base::FEATURE_ENABLED_BY_DEFAULT};
+
 }  // namespace ntp_snippets