[Remote suggestions] Fetch favicon via ContentSuggestionsService

chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java
index 9f3beade41a91127c377f91de148522ed367ecbd..8f406b71b7961f685ec965db08110e26dc5af645 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticle.java
@@ -124,6 +124,11 @@ public class SnippetArticle implements OfflinableSuggestion {
         return true;
     }
 
+    /** @return whether a snippet is a remote suggestion. */
+    public boolean isArticle() {
+        return mCategory == KnownCategories.ARTICLES;
+    }
+
     /** @return whether a snippet is either offline page or asset download. */
     public boolean isDownload() {
         return mCategory == KnownCategories.DOWNLOADS;