mash: Move shelf model and item classes to ash/common/shelf

ash/common/shelf/shelf_model_unittest.cc

 // Copyright 2013 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_model.h"
+#include "ash/common/shelf/shelf_model.h"
 
 #include <set>
 #include <string>
 
-#include "ash/ash_switches.h"
-#include "ash/shelf/shelf_model_observer.h"
-#include "base/command_line.h"
+#include "ash/common/shelf/shelf_model_observer.h"
 #include "base/strings/stringprintf.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ash {
 
 namespace {
 
 // ShelfModelObserver implementation that tracks what message are invoked.
 class TestShelfModelObserver : public ShelfModelObserver {
  public:
@@ skipping 319 matching lines @@
   // Now change the type of the second item and make sure that it is moving
   // behind the shortcuts.
   item.type = TYPE_PLATFORM_APP;
   model_->Set(app2_index, item);
 
   // The item should have moved in front of the app launcher.
   EXPECT_EQ(TYPE_PLATFORM_APP, model_->items()[4].type);
 }
 
 }  // namespace ash