[NTP::PhysicalWeb] Implement suggestion dismissal.

chrome/browser/android/preferences/browser_prefs_android.cc

Index: chrome/browser/android/preferences/browser_prefs_android.cc
diff --git a/chrome/browser/android/preferences/browser_prefs_android.cc b/chrome/browser/android/preferences/browser_prefs_android.cc
index 1dd74d60edfdc9eb74ae5536ab643b89607b6834..faa83e0179478e0142e38c04dda56c1bddb2b4e4 100644
--- a/chrome/browser/android/preferences/browser_prefs_android.cc
+++ b/chrome/browser/android/preferences/browser_prefs_android.cc
@@ -7,18 +7,14 @@
 #include "blimp/client/public/blimp_client_context.h"
 #include "chrome/browser/android/search_geolocation_disclosure_tab_helper.h"
 #include "chrome/browser/notifications/notification_platform_bridge_android.h"
-#include "chrome/browser/ntp_snippets/download_suggestions_provider.h"
-#include "components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/pref_registry_simple.h"
 
 namespace android {
 
 void RegisterUserProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
-  DownloadSuggestionsProvider::RegisterProfilePrefs(registry);
   NotificationPlatformBridgeAndroid::RegisterProfilePrefs(registry);
   SearchGeolocationDisclosureTabHelper::RegisterProfilePrefs(registry);
-  ntp_snippets::RecentTabSuggestionsProvider::RegisterProfilePrefs(registry);
   blimp::client::BlimpClientContext::RegisterPrefs(registry);
 }