Make touch-resizing windows to screen edge possible

ash/wm/panels/panel_window_resizer_unittest.cc

 // Copyright (c) 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/wm/panels/panel_window_resizer.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/launcher/launcher_model.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 60 matching lines @@
                 layout_manager());
     manager->Relayout();
     return window;
   }
 
   static PanelWindowResizer* CreatePanelWindowResizer(
       aura::Window* window,
       const gfx::Point& point_in_parent,
       int window_component) {
     return static_cast<PanelWindowResizer*>(CreateWindowResizer(
-        window, point_in_parent, window_component).release());
+        window, point_in_parent, window_component,
+        aura::client::WINDOW_MOVE_SOURCE_MOUSE).release());
   }
 
   void DragStart(aura::Window* window) {
     resizer_.reset(CreatePanelWindowResizer(window, window->bounds().origin(),
                                             HTCAPTION));
     ASSERT_TRUE(resizer_.get());
   }
 
   void DragMove(int dx, int dy) {
     resizer_->Drag(CalculateDragPoint(*resizer_, dx, dy), 0);
@@ skipping 356 matching lines @@
   ash::Shell* shell = ash::Shell::GetInstance();
   shell->SetShelfAlignment(SHELF_ALIGNMENT_LEFT, shell->GetPrimaryRootWindow());
   DragAlongShelfReorder(0, -1);
 }
 
 INSTANTIATE_TEST_CASE_P(LtrRtl, PanelWindowResizerTextDirectionTest,
                         testing::Bool());
 
 }  // namespace internal
 }  // namespace ash