views::Label: Enable text selection related tests on Mac.

ui/views/controls/label.h

 // 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.
 
 #ifndef UI_VIEWS_CONTROLS_LABEL_H_
 #define UI_VIEWS_CONTROLS_LABEL_H_
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "ui/gfx/render_text.h"
 #include "ui/views/selection_controller_delegate.h"
 #include "ui/views/view.h"
 
 namespace views {
-class LabelTest;
+class LabelSelectionTest;
 class SelectionController;
 
 // A view subclass that can display a string.
 class VIEWS_EXPORT Label : public View, public SelectionControllerDelegate {
  public:
   // Internal class name.
   static const char kViewClassName[];
 
   // The padding for the focus border when rendering focused text.
   static const int kFocusBorderPadding;
@@ skipping 182 matching lines @@
   void OnMouseReleased(const ui::MouseEvent& event) override;
   void OnMouseCaptureLost() override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(LabelTest, ResetRenderTextData);
   FRIEND_TEST_ALL_PREFIXES(LabelTest, MultilineSupportedRenderText);
   FRIEND_TEST_ALL_PREFIXES(LabelTest, TextChangeWithoutLayout);
   FRIEND_TEST_ALL_PREFIXES(LabelTest, EmptyLabel);
   FRIEND_TEST_ALL_PREFIXES(LabelTest, FocusBounds);
   FRIEND_TEST_ALL_PREFIXES(LabelTest, MultiLineSizingWithElide);
-  friend class LabelTest;
+  friend class LabelSelectionTest;
 
   // SelectionControllerDelegate overrides:
   gfx::RenderText* GetRenderTextForSelectionController() override;
   bool IsReadOnly() const override;
   bool SupportsDrag() const override;
   bool HasTextBeingDragged() const override;
   void SetTextBeingDragged(bool value) override;
   int GetViewHeight() const override;
   int GetViewWidth() const override;
   int GetDragSelectionDelay() const override;
@@ skipping 78 matching lines @@
   bool is_first_paint_text_;
 
   std::unique_ptr<SelectionController> selection_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(Label);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_LABEL_H_