[AppList] Add a Suggestions Provider to applist.

ui/app_list/views/search_result_page_view_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/search_result_page_view.h"
 
 #include <map>
 
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/test/app_list_test_view_delegate.h"
@@ skipping 65 matching lines @@
   AppListTestViewDelegate view_delegate_;
   scoped_ptr<SearchResultPageView> view_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchResultPageViewTest);
 };
 
 TEST_F(SearchResultPageViewTest, Basic) {
   std::map<SearchResult::DisplayType, int> result_types;
   const int kListResults = 2;
   const int kTileResults = 1;
+  const int kNoneResults = 3;
   result_types[SearchResult::DISPLAY_LIST] = kListResults;
   result_types[SearchResult::DISPLAY_TILE] = kTileResults;
+  result_types[SearchResult::DISPLAY_NONE] = kNoneResults;
 
   SetUpSearchResults(result_types);
   EXPECT_EQ(0, GetSelectedIndex());
   EXPECT_EQ(0, list_view()->selected_index());
 
   // Navigate to the second result in the list view.
   EXPECT_TRUE(KeyPress(ui::VKEY_DOWN));
   EXPECT_EQ(0, GetSelectedIndex());
   EXPECT_EQ(1, list_view()->selected_index());
 
@@ skipping 17 matching lines @@
   // Navigate off top of list.
   EXPECT_TRUE(KeyPress(ui::VKEY_UP));
   EXPECT_EQ(0, list_view()->selected_index());
   EXPECT_FALSE(KeyPress(ui::VKEY_UP));
   EXPECT_EQ(0, list_view()->selected_index());
   EXPECT_EQ(0, GetSelectedIndex());
 }
 
 }  // namespace test
 }  // namespace app_list