Removes aura dependencies from WindowPositioner

ash/wm/common/wm_globals.h

Index: ash/wm/common/wm_globals.h
diff --git a/ash/wm/common/wm_globals.h b/ash/wm/common/wm_globals.h
new file mode 100644
index 0000000000000000000000000000000000000000..7c977230fc9b41262d456b2536481df1177b7cf2
--- /dev/null
+++ b/ash/wm/common/wm_globals.h
@@ -0,0 +1,51 @@
+// Copyright 2016 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.
+
+#ifndef ASH_WM_COMMON_WM_GLOBALS_H_
+#define ASH_WM_COMMON_WM_GLOBALS_H_
+
+#include <vector>
+
+#include "ash/ash_export.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace ash {
+namespace wm {
+
+class WmWindow;
+
+// Used for accessing global state.
+class ASH_EXPORT WmGlobals {
+ public:
+  virtual ~WmGlobals() {}
+
+  // This is necessary for a handful of places that is difficult to plumb
+  // through context.
+  static WmGlobals* Get();
+
+  virtual WmWindow* GetActiveWindow() = 0;
+
+  // Returns the root window that newly created windows should be added to.
+  // NOTE: this returns the root, newly created window should be added to the
+  // appropriate container in the returned window.
+  virtual WmWindow* GetRootWindowForNewWindows() = 0;
+
+  // returns the list of more recently used windows excluding modals.
+  virtual std::vector<WmWindow*> GetMruWindowListIgnoreModals() = 0;
+
+  // Returns true if the first window shown on first run should be
+  // unconditionally maximized, overriding the heuristic that normally chooses
+  // the window size.
+  virtual bool IsForceMaximizeOnFirstRun() = 0;
+
+  virtual std::vector<WmWindow*> GetAllRootWindows() = 0;
+};
+
+}  // namespace wm
+}  // namespace ash
+
+#endif  // ASH_WM_COMMON_WM_GLOBALS_H_