Implement support for accessible collapse and expand actions on Android

content/browser/accessibility/browser_accessibility_android.h

 // Copyright 2013 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_ANDROID_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_ANDROID_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "content/browser/accessibility/browser_accessibility.h"
 
 namespace content {
 
 class CONTENT_EXPORT BrowserAccessibilityAndroid : public BrowserAccessibility {
  public:
   // Overrides from BrowserAccessibility.
   void OnDataChanged() override;
   bool IsNative() const override;
   void OnLocationChanged() override;
   base::string16 GetValue() const override;
 
   bool PlatformIsLeaf() const override;
 
   bool IsCheckable() const;
   bool IsChecked() const;
   bool IsClickable() const override;
+  bool IsCollapsed() const;
   bool IsCollection() const;
   bool IsCollectionItem() const;
   bool IsContentInvalid() const;
   bool IsDismissable() const;
   bool IsEditableText() const;
   bool IsEnabled() const;
+  bool IsExpanded() const;
   bool IsFocusable() const;
   bool IsFocused() const;
   bool IsHeading() const;
   bool IsHierarchical() const;
   bool IsLink() const;
   bool IsMultiLine() const;
   bool IsPassword() const;
   bool IsRangeType() const;
   bool IsScrollable() const;
   bool IsSelected() const;
@@ skipping 96 matching lines @@
   bool first_time_;
   base::string16 old_value_;
   base::string16 new_value_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_ANDROID_H_