[Autofill] Move functions from the AutofillPopupController to AutofillPopupLayoutModel

chrome/browser/ui/autofill/popup_view_common.h

+// 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 CHROME_BROWSER_UI_AUTOFILL_POPUP_VIEW_COMMON_H_
+#define CHROME_BROWSER_UI_AUTOFILL_POPUP_VIEW_COMMON_H_
+
+#include "base/macros.h"
+#include "ui/gfx/native_widget_types.h"
+
+namespace gfx {
+class Display;
+class Point;
+class Rect;
+}
+
+namespace autofill {
+
+// Provides utility functions for popup-style views.
+class PopupViewCommon {
+ public:
+  // Returns the bounds that the popup should be placed at, given the desired
+  // width and height. By default this places the popup below |element_bounds|
+  // but it will be placed above if there isn't enough space.
+  gfx::Rect CalculatePopupBounds(int desired_width,
+                                 int desired_height,
+                                 const gfx::Rect& element_bounds,
+                                 gfx::NativeView container_view,
+                                 bool is_rtl);
+
+ protected:
+  // A helper function to get the display closest to the given point (virtual
+  // for testing).
+  virtual gfx::Display GetDisplayNearestPoint(const gfx::Point& point,
+                                              gfx::NativeView container_view);
+};
+
+}  // namespace autofill
+
+#endif  // CHROME_BROWSER_UI_AUTOFILL_POPUP_VIEW_COMMON_H_