📰 Add tests for Tile and TileGroup

chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java

Index: chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java
index 8c8b0781bf7f419e41360e766c8f3d4581086b7d..3d711fe50adbf8b9042ebc56c0e250d9cf4acdb3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/TileGroup.java
@@ -23,6 +23,7 @@
 
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.Log;
+import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.favicon.LargeIconBridge.LargeIconCallback;
@@ -261,8 +262,7 @@ public void renderTileViews(
         for (Tile tile : mTiles) {
             TileView tileView = oldTileViews.get(tile.getUrl());
             if (tileView == null) {
-                tileView = buildTileView(
-                        tile, tileGridLayout, trackLoadTasks, mTitleLinesCount, condensed);
+                tileView = buildTileView(tile, tileGridLayout, trackLoadTasks, condensed);
             } else {
                 tileView.updateIfDataChanged(tile);
             }
@@ -284,15 +284,15 @@ public boolean hasReceivedData() {
      * @param tile The tile that holds the data to populate the new tile view.
      * @param parentView The parent of the new tile view.
      * @param trackLoadTask Whether to track a load task.
-     * @param titleLines The number of text lines to use for each tile title.
      * @param condensed Whether to use a condensed layout.
      * @return The new tile view.
      */
-    private TileView buildTileView(Tile tile, ViewGroup parentView, boolean trackLoadTask,
-            int titleLines, boolean condensed) {
+    @VisibleForTesting
+    TileView buildTileView(
+            Tile tile, ViewGroup parentView, boolean trackLoadTask, boolean condensed) {
         TileView tileView = (TileView) LayoutInflater.from(parentView.getContext())
                                     .inflate(R.layout.tile_view, parentView, false);
-        tileView.initialize(tile, titleLines, condensed);
+        tileView.initialize(tile, mTitleLinesCount, condensed);
 
         // Note: It is important that the callbacks below don't keep a reference to the tile or
         // modify them as there is no guarantee that the same tile would be used to update the view.