Implemented SetSelection for the Web content on Windows.

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 "content/browser/accessibility/ax_tree_id_registry.h"
-#include "content/browser/accessibility/browser_accessibility.h"
 #include "ui/accessibility/ax_position.h"
 
 namespace content {
 
+class BrowserAccessibility;
+
 using AXTreeID = content::AXTreeIDRegistry::AXTreeID;
 
 class AXPlatformPosition
     : public ui::AXPosition<AXPlatformPosition, BrowserAccessibility> {
  public:
   AXPlatformPosition();
   ~AXPlatformPosition() override;
 
   AXPositionInstance Clone() const override;
 
@@ skipping 13 matching lines @@
   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_