De-templatize ui::AXPosition

content/browser/accessibility/ax_platform_position.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 CONTENT_BROWSER_ACCESSIBILITY_AX_PLATFORM_POSITION_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_AX_PLATFORM_POSITION_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/strings/string16.h"
 #include "ui/accessibility/ax_position.h"
 #include "ui/accessibility/ax_tree_id_registry.h"
 
 namespace content {
 
 class BrowserAccessibility;
 
 using AXTreeID = ui::AXTreeIDRegistry::AXTreeID;
 
 class AXPlatformPosition
     : public ui::AXPosition<AXPlatformPosition, BrowserAccessibility> {
  public:
   AXPlatformPosition();
   ~AXPlatformPosition() override;
 
-  AXPositionInstance Clone() const override;
+  ConcreteInstance CloneConcrete() const override;
 
   base::string16 GetInnerText() const override;
 
  protected:
   AXPlatformPosition(const AXPlatformPosition& other) = default;
   void AnchorChild(int child_index,
                    AXTreeID* tree_id,
                    int32_t* child_id) const override;
   int AnchorChildCount() const override;
   int AnchorIndexInParent() const override;
   void AnchorParent(AXTreeID* tree_id, int32_t* parent_id) const override;
   BrowserAccessibility* GetNodeInTree(AXTreeID tree_id,
                                       int32_t node_id) const override;
   int MaxTextOffset() const override;
   int MaxTextOffsetInParent() const override;
   bool IsInLineBreak() const override;
   std::vector<int32_t> GetWordStartOffsets() const override;
   std::vector<int32_t> GetWordEndOffsets() const override;
   int32_t GetNextOnLineID(int32_t node_id) const override;
   int32_t GetPreviousOnLineID(int32_t node_id) const override;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_AX_PLATFORM_POSITION_H_