Hide AXPlatformNode on ChromeOS.

ui/views/accessibility/native_view_accessibility_base.h

Index: ui/views/accessibility/native_view_accessibility_base.h
diff --git a/ui/views/accessibility/native_view_accessibility.h b/ui/views/accessibility/native_view_accessibility_base.h
similarity index 66%
copy from ui/views/accessibility/native_view_accessibility.h
copy to ui/views/accessibility/native_view_accessibility_base.h
index ec1e0dbe626e0f256b985e9d75acd184515b5687..6606a105a62eb28fc55212631a245a39c38508e3 100644
--- a/ui/views/accessibility/native_view_accessibility.h
+++ b/ui/views/accessibility/native_view_accessibility_base.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_H_
-#define UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_H_
+#ifndef UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_BASE_H_
+#define UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_BASE_H_
 
 #include <memory>
 
@@ -14,41 +14,27 @@
 #include "ui/accessibility/platform/ax_platform_node.h"
 #include "ui/accessibility/platform/ax_platform_node_delegate.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/views/accessibility/native_view_accessibility.h"
 #include "ui/views/views_export.h"
 #include "ui/views/widget/widget_observer.h"
 
-// Set PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL if this platform has a
-// specific implementation of NativeViewAccessibility::Create().
-#undef PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL
-
-#if defined(OS_WIN)
-#define PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL 1
-#endif
-
-#if defined(OS_MACOSX)
-#define PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL 1
-#endif
-
-#if defined(OS_LINUX) && defined(USE_X11) && !defined(OS_CHROMEOS)
-#define PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL 1
-#endif
-
 namespace views {
 
 class View;
 class Widget;
 
-class VIEWS_EXPORT NativeViewAccessibility
-    : public ui::AXPlatformNodeDelegate,
+// Shared base class for platforms that require an implementation of
+// NativeViewAccessibility to interface with the native accessibility toolkit.
+class VIEWS_EXPORT NativeViewAccessibilityBase
+    : public NativeViewAccessibility,
+      public ui::AXPlatformNodeDelegate,
       public WidgetObserver {
  public:
-  static std::unique_ptr<NativeViewAccessibility> Create(View* view);
-
-  ~NativeViewAccessibility() override;
-
-  gfx::NativeViewAccessible GetNativeObject();
+  ~NativeViewAccessibilityBase() override;
 
-  void NotifyAccessibilityEvent(ui::AXEvent event_type);
+  // NativeViewAccessibility:
+  gfx::NativeViewAccessible GetNativeObject() override;
+  void NotifyAccessibilityEvent(ui::AXEvent event_type) override;
 
   // Focuses or unfocuses a View.
   bool SetFocused(bool focused);
@@ -73,7 +59,7 @@ class VIEWS_EXPORT NativeViewAccessibility
   void SetParentWidget(Widget* parent_widget);
 
  protected:
-  explicit NativeViewAccessibility(View* view);
+  explicit NativeViewAccessibilityBase(View* view);
 
   // Weak. Owns this.
   View* view_;
@@ -92,9 +78,9 @@ class VIEWS_EXPORT NativeViewAccessibility
 
   ui::AXNodeData data_;
 
-  DISALLOW_COPY_AND_ASSIGN(NativeViewAccessibility);
+  DISALLOW_COPY_AND_ASSIGN(NativeViewAccessibilityBase);
 };
 
 }  // namespace views
 
-#endif  // UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_H_
+#endif  // UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_BASE_H_