Add 5 experimental accessibility features on Chrome OS.

ash/default_accessibility_delegate.cc

Index: ash/default_accessibility_delegate.cc
diff --git a/ash/default_accessibility_delegate.cc b/ash/default_accessibility_delegate.cc
index f337a2eb39a3cc51ddd641446acbf76ca32c8bd0..402e5b59f38676ed4881124b6e49a0616ce19f3f 100644
--- a/ash/default_accessibility_delegate.cc
+++ b/ash/default_accessibility_delegate.cc
@@ -8,16 +8,7 @@
 
 namespace ash {
 
-DefaultAccessibilityDelegate::DefaultAccessibilityDelegate()
-    : spoken_feedback_enabled_(false),
-      high_contrast_enabled_(false),
-      screen_magnifier_enabled_(false),
-      screen_magnifier_type_(ui::kDefaultMagnifierType),
-      large_cursor_enabled_(false),
-      autoclick_enabled_(false),
-      virtual_keyboard_enabled_(false),
-      accessibility_alert_(ui::A11Y_ALERT_NONE) {
-}
+DefaultAccessibilityDelegate::DefaultAccessibilityDelegate() {}
 
 DefaultAccessibilityDelegate::~DefaultAccessibilityDelegate() {}
 
@@ -73,6 +64,46 @@ bool DefaultAccessibilityDelegate::IsVirtualKeyboardEnabled() const {
   return virtual_keyboard_enabled_;
 }
 
+void DefaultAccessibilityDelegate::SetCaretHighlightEnabled(bool enabled) {
+  caret_highlight_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsCaretHighlightEnabled() const {
+  return caret_highlight_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetCursorHighlightEnabled(bool enabled) {
+  cursor_highlight_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsCursorHighlightEnabled() const {
+  return cursor_highlight_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetFocusHighlightEnabled(bool enabled) {
+  focus_highligh_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsFocusHighlightEnabled() const {
+  return focus_highligh_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetSelectToSpeakEnabled(bool enabled) {
+  select_to_speak_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsSelectToSpeakEnabled() const {
+  return select_to_speak_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetSwitchAccessEnabled(bool enabled) {
+  switch_access_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsSwitchAccessEnabled() const {
+  return switch_access_enabled_;
+}
+
 bool DefaultAccessibilityDelegate::ShouldShowAccessibilityMenu() const {
   return spoken_feedback_enabled_ ||
          high_contrast_enabled_ ||