Rename MostVisited ui bits to Tile(Grid).

chrome/android/java/res/layout/new_tab_page_layout.xml

Index: chrome/android/java/res/layout/new_tab_page_layout.xml
diff --git a/chrome/android/java/res/layout/new_tab_page_layout.xml b/chrome/android/java/res/layout/new_tab_page_layout.xml
index 0af0820714c0ddea39e14a045fa09063bde81086..aca5715d1d61539933607a149dfee5761611da52 100644
--- a/chrome/android/java/res/layout/new_tab_page_layout.xml
+++ b/chrome/android/java/res/layout/new_tab_page_layout.xml
@@ -102,26 +102,26 @@
         android:layout_weight="0"
         android:visibility="invisible" />
 
-    <!-- Most visited items -->
-    <org.chromium.chrome.browser.ntp.MostVisitedLayout
-        android:id="@+id/most_visited_layout"
+    <!-- Site suggestion tiles -->
+    <org.chromium.chrome.browser.suggestions.TileGridLayout
+        android:id="@+id/tile_grid_layout"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="16dp"
         android:layout_marginStart="12dp"
         android:layout_marginEnd="12dp"
         android:layout_gravity="center_horizontal"
-        android:paddingTop="@dimen/most_visited_layout_padding_top"
+        android:paddingTop="@dimen/tile_grid_layout_padding_top"
         android:paddingBottom="4dp" />
 
-    <!-- Most visited items placeholder -->
+    <!-- Site suggestions tile grid placeholder -->
     <ViewStub
-        android:id="@+id/most_visited_placeholder_stub"
+        android:id="@+id/tile_grid_placeholder_stub"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_weight="1"
-        android:inflatedId="@+id/most_visited_placeholder"
-        android:layout="@layout/most_visited_placeholder" />
+        android:inflatedId="@+id/tile_grid_placeholder"
+        android:layout="@layout/new_tab_page_tile_grid_placeholder" />
 
     <!-- Bottom spacer -->
     <View