Start using the whitelist icon on the NTP.

chrome/browser/android/most_visited_sites.h

Index: chrome/browser/android/most_visited_sites.h
diff --git a/chrome/browser/android/most_visited_sites.h b/chrome/browser/android/most_visited_sites.h
index 33fdca54eeb2d1351652a93f709cf571f9a64efe..4a44b6badbd079d72ef855b09e766dc7bacb729b 100644
--- a/chrome/browser/android/most_visited_sites.h
+++ b/chrome/browser/android/most_visited_sites.h
@@ -13,6 +13,7 @@
 
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
+#include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ -89,6 +90,8 @@ class MostVisitedSites : public sync_driver::SyncServiceObserver,
     base::string16 title;
     GURL url;
     MostVisitedSource source;
+    // Only valid for source == WHITELIST (empty otherwise).

[Bernhard Bauer, 2016/03/15 12:03:35]

Please add empty lines before comments, to make it look less cramped.

[atanasova, 2016/03/16 10:55:24]

Done.

+    base::FilePath large_icon_path;
     // Only valid for source == SUGGESTIONS_SERVICE (-1 otherwise).
     int provider_index;
 
@@ -97,6 +100,10 @@ class MostVisitedSites : public sync_driver::SyncServiceObserver,
                MostVisitedSource source);
     Suggestion(const base::string16& title,
                const GURL& url,
+               MostVisitedSource source,
+               const base::FilePath& large_icon_path);
+    Suggestion(const base::string16& title,

[Bernhard Bauer, 2016/03/15 12:03:35]

Do we really need all of these constructors? Could you at least use delegation
to get rid of all the duplicated code?

Other possibilities:
* A single constructor, with static convenience methods for the various kinds of
suggestions (whitelist, suggestions, etc.) that take only the parameters needed
for that type
* A builder class.

[atanasova, 2016/03/16 10:55:24]

Created a builder class

+               const GURL& url,
                MostVisitedSource source);
     Suggestion(const base::string16& title,
                const std::string& url,