Revert of Create AXAction and AXActionData as a way to simplify accessibility actions

ui/accessibility/ax_enums.idl

Index: ui/accessibility/ax_enums.idl
diff --git a/ui/accessibility/ax_enums.idl b/ui/accessibility/ax_enums.idl
index d2fec3dbfede55600ea239de33406e42a0c93e8a..89d384227869503a169bc23bb83e6931498b4826 100644
--- a/ui/accessibility/ax_enums.idl
+++ b/ui/accessibility/ax_enums.idl
@@ -7,7 +7,7 @@
 // until the Chromium and Blink trees are merged.
 [camel_case_enum_to_string=true] namespace ui {
 
-  // For new entries to the following four enums, also add to
+  // For new entries to the following three enums, also add to
   // chrome/common/extensions/api/automation.idl. This is enforced
   // by a PRESUBMIT check.
   //
@@ -228,38 +228,6 @@
     visited
   };
 
-  // An action to be taken on an accessibility node.
-  enum AXAction {
-    // Do the default action for an object, typically this means "click".
-    do_default,
-
-    // Given a point, find the object it corresponds to and fire a
-    // HOVER event on it in response.
-    hit_test,
-
-    // Scroll any scrollable containers to make the target object visible
-    // on the screen.  Optionally pass a subfocus rect in
-    // AXActionData.target_rect.
-    scroll_to_make_visible,
-
-    // Scroll the given object to a specified point on the screen in
-    // global screen coordinates. Pass a point in AXActionData.target_point.
-    scroll_to_point,
-
-    set_accessibility_focus,
-    set_focus,
-    set_scroll_offset,
-    set_selection,
-    set_value,
-    show_context_menu
-  };
-
-  enum AXActionFlags {
-    request_images,
-    request_inline_text_boxes,
-    set_sequential_focus_navigation_point
-  };
-
   // A change to the accessibility tree.
   enum AXMutation {
     node_created,