[NTP::PhysicalWeb] Implement suggestion dismissal.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 95e7e7dcc27309ef01e3a317b8df2a7ea561e629..c92c9c81ed629fb1fd95491a87b5de1e83499fdb 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -164,6 +164,9 @@
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/android/preferences/browser_prefs_android.h"
+#include "chrome/browser/ntp_snippets/download_suggestions_provider.h"
+#include "components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.h"
+#include "components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.h"
 #else
 #include "chrome/browser/services/gcm/gcm_product_util.h"
 #include "chrome/browser/signin/signin_promo.h"
@@ -548,6 +551,13 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   LocalDiscoveryUI::RegisterProfilePrefs(registry);
 #endif
 
+#if defined(OS_ANDROID)

[Bernhard Bauer, 2016/12/09 14:33:07]

Can you move this block to line 595? I think it's unconditional registrations
first, then build flags, then OS.

[vitaliii, 2016/12/09 16:13:48]

Done.

+  DownloadSuggestionsProvider::RegisterProfilePrefs(registry);
+  ntp_snippets::PhysicalWebPageSuggestionsProvider::RegisterProfilePrefs(
+      registry);
+  ntp_snippets::RecentTabSuggestionsProvider::RegisterProfilePrefs(registry);
+#endif  // defined(OS_ANDROID)
+
 #if BUILDFLAG(ENABLE_SUPERVISED_USERS)
 #if !defined(OS_ANDROID)
   SupervisedUserSharedSettingsService::RegisterProfilePrefs(registry);