Make BrowserAccessibility implement AXPlatformNodeDelegete.

content/browser/accessibility/browser_accessibility.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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/ax_platform_position.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/web/WebAXEnums.h"
 #include "ui/accessibility/ax_node.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/accessibility/ax_range.h"
 #include "ui/accessibility/ax_text_utils.h"
+#include "ui/accessibility/platform/ax_platform_node_delegate.h"
 
 // Set PLATFORM_HAS_NATIVE_ACCESSIBILITY_IMPL if this platform has
 // a platform-specific subclass of BrowserAccessibility and
 // BrowserAccessibilityManager.
 #undef PLATFORM_HAS_NATIVE_ACCESSIBILITY_IMPL
 
 #if defined(OS_WIN)
 #define PLATFORM_HAS_NATIVE_ACCESSIBILITY_IMPL 1
 #endif
 
@@ skipping 22 matching lines @@
 //
 // A BrowserAccessibility object represents one node in the accessibility
 // tree on the browser side. It exactly corresponds to one WebAXObject from
 // Blink. It's owned by a BrowserAccessibilityManager.
 //
 // There are subclasses of BrowserAccessibility for each platform where
 // we implement native accessibility APIs. This base class is used occasionally
 // for tests.
 //
 ////////////////////////////////////////////////////////////////////////////////
-class CONTENT_EXPORT BrowserAccessibility {
+class CONTENT_EXPORT BrowserAccessibility : public ui::AXPlatformNodeDelegate {
  public:
   // Creates a platform specific BrowserAccessibility. Ownership passes to the
   // caller.
   static BrowserAccessibility* Create();
 
   virtual ~BrowserAccessibility();
 
   static BrowserAccessibility* GetFromUniqueID(int32_t unique_id);
 
   // Called only once, immediately after construction. The constructor doesn't
@@ skipping 151 matching lines @@
   // Use PlatformChildCount and PlatformGetChild to implement platform
   // accessibility APIs.
   uint32_t InternalChildCount() const;
   BrowserAccessibility* InternalGetChild(uint32_t child_index) const;
   BrowserAccessibility* InternalGetParent() const;
 
   BrowserAccessibility* PlatformGetParent() const;
   int32_t GetIndexInParent() const;
 
   int32_t GetId() const;
-  const ui::AXNodeData& GetData() const;
   gfx::RectF GetLocation() const;
   ui::AXRole GetRole() const;
   int32_t GetState() const;
 
   typedef base::StringPairs HtmlAttributes;
   const HtmlAttributes& GetHtmlAttributes() const;
 
   // Returns true if this is a native platform-specific object, vs a
   // cross-platform generic object. Don't call ToBrowserAccessibilityXXX if
   // IsNative returns false.
@@ skipping 108 matching lines @@
 
   // Creates a position rooted at this object.
   // This is a text position on all platforms except IA2 and ATK, where tree
   // positions are created for non-text objects representing hypertext offsets.
   virtual AXPlatformPosition::AXPositionInstance CreatePositionAt(
       int offset) const;
 
   // Gets the text offsets where new lines start.
   std::vector<int> GetLineStartOffsets() const;
 
+  // AXPlatformNodeDelegate.
+  const ui::AXNodeData& GetData() const override;
+  gfx::NativeWindow GetTopLevelWidget() override;
+  gfx::NativeViewAccessible GetParent() override;
+  int GetChildCount() override;
+  gfx::NativeViewAccessible ChildAtIndex(int index) override;
+  gfx::Vector2d GetGlobalCoordinateOffset() override;
+  gfx::NativeViewAccessible HitTestSync(int x, int y) override;
+  gfx::NativeViewAccessible GetFocus() override;
+  gfx::AcceleratedWidget GetTargetForNativeAccessibilityEvent() override;
+  bool AccessibilityPerformAction(const ui::AXActionData& data) override;
+  void DoDefaultAction() override;
+
  protected:
   using AXPlatformPositionInstance = AXPlatformPosition::AXPositionInstance;
   using AXPlatformRange = ui::AXRange<AXPlatformPositionInstance::element_type>;
 
   BrowserAccessibility();
 
   // The manager of this tree of accessibility objects.
   BrowserAccessibilityManager* manager_;
 
   // The underlying node.
@@ skipping 14 matching lines @@
   // bounds, but "virtual" elements in the accessibility tree that don't
   // correspond to a layed-out element sometimes don't have bounds.
   void FixEmptyBounds(gfx::RectF* bounds) const;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_