Removes aura dependencies from WindowPositioner

ash/wm/drag_window_resizer_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/wm/drag_window_resizer.h"
 
 #include "ash/display/display_manager.h"
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/cursor_manager_test_api.h"
 #include "ash/test/display_manager_test_api.h"
+#include "ash/wm/common/window_positioning_utils.h"
 #include "ash/wm/drag_window_controller.h"
 #include "ash/wm/window_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/env.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/compositor/layer_tree_owner.h"
@@ skipping 178 matching lines @@
     std::unique_ptr<WindowResizer> resizer(
         CreateDragWindowResizer(window_.get(), gfx::Point(49, 0), HTCAPTION));
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 751, 10), ui::EF_CONTROL_DOWN);
     resizer->CompleteDrag();
     // Since the pointer is on the secondary, the parent should be changed
     // even though only small fraction of the window is within the secondary
     // root window's bounds.
     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
     // Window origin should be adjusted for minimum visibility (25px).
-    int expected_x = -50 + kMinimumOnScreenArea;
+    int expected_x = -50 + wm::kMinimumOnScreenArea;
 
     EXPECT_EQ(base::IntToString(expected_x) + ",10 50x60",
               window_->bounds().ToString());
   }
   // Dropping a window that is larger than the destination work area
   // will shrink to fit to the work area.
   window_->SetBoundsInScreen(gfx::Rect(0, 0, 700, 500),
                              gfx::Screen::GetScreen()->GetPrimaryDisplay());
   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
   {
@@ skipping 499 matching lines @@
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
     EXPECT_EQ("401,200",
               aura::Env::GetInstance()->last_mouse_location().ToString());
     resizer->CompleteDrag();
   }
 }
 
 }  // namespace ash