Allow arrow keys to navigate tile results in the experimental app list.

ui/app_list/views/search_result_page_view_unittest.cc

Index: ui/app_list/views/search_result_page_view_unittest.cc
diff --git a/ui/app_list/views/search_result_page_view_unittest.cc b/ui/app_list/views/search_result_page_view_unittest.cc
index e89657ee35d3f094ee64712e941d731a62860cb3..33f72f63210725215acb81d28aabe875e40deead 100644
--- a/ui/app_list/views/search_result_page_view_unittest.cc
+++ b/ui/app_list/views/search_result_page_view_unittest.cc
@@ -13,6 +13,7 @@
 #include "ui/app_list/views/search_result_list_view_delegate.h"
 #include "ui/app_list/views/search_result_tile_item_list_view.h"
 #include "ui/app_list/views/search_result_view.h"
+#include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/test/views_test_base.h"
 
 namespace app_list {
@@ -30,7 +31,8 @@ class SearchResultPageViewTest : public views::ViewsTestBase,
     view_.reset(new SearchResultPageView());
     list_view_ = new SearchResultListView(this, &view_delegate_);
     view_->AddSearchResultContainerView(GetResults(), list_view_);
-    tile_list_view_ = new SearchResultTileItemListView();
+    textfield_.reset(new views::Textfield());
+    tile_list_view_ = new SearchResultTileItemListView(textfield_.get());
     view_->AddSearchResultContainerView(GetResults(), tile_list_view_);
   }
 
@@ -74,6 +76,7 @@ class SearchResultPageViewTest : public views::ViewsTestBase,
 
   AppListTestViewDelegate view_delegate_;
   scoped_ptr<SearchResultPageView> view_;
+  scoped_ptr<views::Textfield> textfield_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchResultPageViewTest);
 };