[ash] Add TYPE_DIALOG and its item's LauncherContextMenu

ash/shelf/shelf_view_unittest.cc

 // Copyright (c) 2012 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 "ash/shelf/shelf_view.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 229 matching lines @@
   virtual void UnpinAppWithID(const std::string& app_id) OVERRIDE {
     LauncherID id = 0;
     EXPECT_TRUE(base::StringToInt(app_id, &id));
     ASSERT_GT(id, 0);
     int index = model_->ItemIndexByID(id);
     ASSERT_GE(index, 0);
 
     model_->RemoveItemAt(index);
   }
 
+  virtual bool CanUserModifyShelfAutoHideBehavior(
+      aura::Window* root_window) const OVERRIDE {
+    return true;
+  }
+
  private:
   ShelfModel* model_;
 
   // Temp member variable for returning a value. See the comment in the
   // GetAppIDForLauncherID().
   std::string app_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TestShelfDelegateForShelfView);
 };
 
@@ skipping 1471 matching lines @@
   test_api_->RunMessageLoopUntilAnimationsDone();
   CheckAllItemsAreInBounds();
 }
 
 INSTANTIATE_TEST_CASE_P(LtrRtl, ShelfViewTextDirectionTest, testing::Bool());
 INSTANTIATE_TEST_CASE_P(VisibleBounds, ShelfViewVisibleBoundsTest,
     testing::Bool());
 
 }  // namespace test
 }  // namespace ash