Add 5 experimental accessibility features on Chrome OS.

chrome/browser/ui/ash/chrome_shell_delegate_views.cc

Index: chrome/browser/ui/ash/chrome_shell_delegate_views.cc
diff --git a/chrome/browser/ui/ash/chrome_shell_delegate_views.cc b/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
index 198a9abc4bb6f0da1fb61d1d07785d9a83a3311c..39cb4d1d551233a7d56895865b72e6014f8aa1fc 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
@@ -95,6 +95,26 @@ class EmptyAccessibilityDelegate : public ash::AccessibilityDelegate {
 
   bool IsAutoclickEnabled() const override { return false; }
 
+  void SetCaretHighlightEnabled(bool enabled) override {}
+
+  bool IsCaretHighlightEnabled() const override { return false; }
+
+  void SetCursorHighlightEnabled(bool enabled) override {}
+
+  bool IsCursorHighlightEnabled() const override { return false; }
+
+  void SetFocusHighlightEnabled(bool enabled) override {}
+
+  bool IsFocusHighlightEnabled() const override { return false; }
+
+  void SetSelectToSpeakEnabled(bool enabled) override {}
+
+  bool IsSelectToSpeakEnabled() const override { return false; }
+
+  void SetSwitchAccessEnabled(bool enabled) override {}
+
+  bool IsSwitchAccessEnabled() const override { return false; }
+
   ui::MagnifierType GetMagnifierType() const override {
     return ui::kDefaultMagnifierType;
   }