Refactor and extend SnippetsBridge for multi-section support

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
index 300ec76619ec008b21d464dcbfb7f249512504a5..02acf3ef33a6bbc6b1175aa5468b5650f4e377ab 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
@@ -68,7 +68,7 @@ public class SnippetArticleViewHolder extends CardViewHolder
     private static final int ID_REMOVE = 4;
 
     private final NewTabPageManager mNewTabPageManager;
-    private final SnippetsSource mSnippetsSource;
+    private final SuggestionsSource mSuggestionsSource;
     private final TextView mHeadlineTextView;
     private final TextView mPublisherTextView;
     private final TextView mArticleSnippetTextView;
@@ -86,15 +86,15 @@ public class SnippetArticleViewHolder extends CardViewHolder
      *
      * @param parent The ViewGroup that is going to contain the newly created view.
      * @param manager The NTPManager object used to open an article
-     * @param snippetsSource The SnippetsBridge used to retrieve the snippet thumbnails.
+     * @param suggestionsSource The source used to retrieve the thumbnails.
      * @param uiConfig The NTP UI configuration object used to adjust the article UI.
      */
     public SnippetArticleViewHolder(NewTabPageRecyclerView parent, NewTabPageManager manager,
-            SnippetsSource snippetsSource, UiConfig uiConfig) {
+            SuggestionsSource suggestionsSource, UiConfig uiConfig) {
         super(R.layout.new_tab_page_snippets_card, parent, uiConfig);
 
         mNewTabPageManager = manager;
-        mSnippetsSource = snippetsSource;
+        mSuggestionsSource = suggestionsSource;
         mThumbnailView = (ImageView) itemView.findViewById(R.id.article_thumbnail);
         mHeadlineTextView = (TextView) itemView.findViewById(R.id.article_headline);
         mPublisherTextView = (TextView) itemView.findViewById(R.id.article_publisher);
@@ -254,7 +254,7 @@ public class SnippetArticleViewHolder extends CardViewHolder
         } else {
             mThumbnailView.setImageResource(R.drawable.ic_snippet_thumbnail_placeholder);
             mImageCallback = new FetchImageCallback(this, mArticle);
-            mSnippetsSource.fetchSnippetImage(mArticle, mImageCallback);
+            mSuggestionsSource.fetchSuggestionImage(mArticle, mImageCallback);
         }
 
         // Set the favicon of the publisher.