Substitute AXNode::GetPosInSet() and AXNode::GetSetSize().

This change only reflects updates to Android-specific
code. Substituting recently implemented
AXNode::GetPosInSet() and AXNode::GetSetSize() functions
when posinset and setsize computations are necessary.

Change-Id: I6cd876921cd1ab8cc6f47f058dcfc88d7c365897
Reviewed-on: https://chromium-review.googlesource.com/c/1361654
Commit-Queue: Akihiro Ota <akihiroota@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614747}

content/browser/accessibility/browser_accessibility_android.cc

@@ -1064,7 +1064,7 @@ int BrowserAccessibilityAndroid::GetItemIndex() const {
       case ax::mojom::Role::kListItem:
       case ax::mojom::Role::kListBoxOption:
       case ax::mojom::Role::kTreeItem:
-        index = GetIntAttribute(ax::mojom::IntAttribute::kPosInSet) - 1;
+        index = node()->GetPosInSet() - 1;
         break;
       default:
         break;
@@ -1085,7 +1085,7 @@ int BrowserAccessibilityAndroid::GetItemCount() const {
       case ax::mojom::Role::kList:
       case ax::mojom::Role::kListBox:
       case ax::mojom::Role::kDescriptionList:
-        count = PlatformChildCount();
+        count = node()->GetSetSize();
         break;
       default:
         break;
@@ -1385,7 +1385,7 @@ int BrowserAccessibilityAndroid::RowCount() const {
       GetRole() == ax::mojom::Role::kListBox ||
       GetRole() == ax::mojom::Role::kDescriptionList ||
       GetRole() == ax::mojom::Role::kTree) {
-    return PlatformChildCount();
+    return node()->GetSetSize();
   }
 
   return 0;
@@ -1402,7 +1402,7 @@ int BrowserAccessibilityAndroid::RowIndex() const {
   if (GetRole() == ax::mojom::Role::kListItem ||
       GetRole() == ax::mojom::Role::kListBoxOption ||
       GetRole() == ax::mojom::Role::kTreeItem) {
-    return GetIndexInParent();
+    return node()->GetPosInSet() - 1;
   }
 
   return node()->GetTableCellRowIndex();

content/test/data/accessibility/aria/aria-listbox-expected-android.txt

 android.webkit.WebView focusable focused scrollable
-++android.widget.ListView role_description='list box' clickable collection item_count=5 row_count=5
+++android.widget.ListView role_description='list box' clickable collection item_count=4 row_count=4
 ++++android.view.View clickable collection_item focusable name='Item 1'
 ++++android.view.View clickable collection_item focusable name='Item 2' item_index=1 row_index=1
 ++++android.view.View role_description='splitter'
-++++android.view.View clickable collection_item focusable name='Second group item 1' row_index=3
-++++android.view.View clickable collection_item focusable name='Second group item 2' item_index=1 row_index=4
\ No newline at end of file
+++++android.view.View clickable collection_item focusable name='Second group item 1' item_index=2 row_index=2
+++++android.view.View clickable collection_item focusable name='Second group item 2' item_index=3 row_index=3

content/test/data/accessibility/html/dd-expected-android.txt

 android.webkit.WebView focusable focused scrollable
-++android.widget.ListView collection item_count=2 row_count=2
+++android.widget.ListView collection item_count=1 row_count=1
 ++++android.view.View collection_item name='Coffee'
 ++++android.view.View role_description='definition' name='Black hot drink'

content/test/data/accessibility/html/dl-expected-android.txt

 android.webkit.WebView focusable focused scrollable
-++android.widget.ListView collection item_count=2 row_count=2
+++android.widget.ListView collection item_count=1 row_count=1
 ++++android.view.View collection_item name='Term'
 ++++android.view.View role_description='definition' name='Description'
 ++android.view.View role_description='definition' name='Definition'

content/test/data/accessibility/html/dt-expected-android.txt

 android.webkit.WebView focusable focused scrollable
-++android.widget.ListView collection item_count=2 row_count=2
+++android.widget.ListView collection item_count=1 row_count=1
 ++++android.view.View collection_item name='Coffee'
 ++++android.view.View role_description='definition' name='Black hot drink'

content/test/data/accessibility/html/list-expected-android.txt

@@ -9,9 +9,9 @@ android.webkit.WebView focusable focused scrollable
 ++++android.view.View collection_item item_index=2 row_index=2
 ++++++android.view.View name='• '
 ++++++android.view.View name='toe'
-++android.widget.ListView collection item_count=5 row_count=5
+++android.widget.ListView collection item_count=3 row_count=3
 ++++android.view.View collection_item name='tic'
 ++++android.view.View name=' '
-++++android.view.View collection_item name='tac' item_index=1 row_index=2
+++++android.view.View collection_item name='tac' item_index=1 row_index=1
 ++++android.view.View name=' '
-++++android.view.View collection_item name='toe' item_index=2 row_index=4
+++++android.view.View collection_item name='toe' item_index=2 row_index=2

content/test/data/accessibility/html/nestedlist-expected-android.txt

 android.webkit.WebView focusable focused scrollable
 ++android.view.View name='This is a multi-leveled list'
-++android.widget.ListView collection hierarchical item_count=4 row_count=4
+++android.widget.ListView collection hierarchical item_count=3 row_count=3
 ++++android.view.View collection_item
 ++++++android.view.View name='1. '
 ++++++android.view.View name='Sports'

content/test/data/accessibility/html/nestedlist.html

@@ -14,6 +14,6 @@
     </ol>
   </li>
   <li> Recipes </li>
-    <ol>
-    </ol>
+  <ol>
+  </ol>
 </ol>

ui/accessibility/ax_node.cc

@@ -588,6 +588,12 @@ bool AXNode::SetRoleMatchesItemRole(const AXNode* ordered_set) const {
     case ax::mojom::Role::kRadioGroup:
       return item_role == ax::mojom::Role::kRadioButton;
 
+    case ax::mojom::Role::kDescriptionList:
+      // Only the term for each description list entry should receive posinset
+      // and setsize.
+      return item_role == ax::mojom::Role::kDescriptionListTerm ||
+             item_role == ax::mojom::Role::kTerm;
+
     default:
       return false;
   }

ui/accessibility/ax_role_properties.cc

@@ -171,6 +171,8 @@ bool IsItemLike(const ax::mojom::Role role) {
     case ax::mojom::Role::kTreeItem:
     case ax::mojom::Role::kListBoxOption:
     case ax::mojom::Role::kRadioButton:
+    case ax::mojom::Role::kDescriptionListTerm:
+    case ax::mojom::Role::kTerm:
       return true;
     default:
       return false;
@@ -269,6 +271,7 @@ bool IsSetLike(const ax::mojom::Role role) {
     case ax::mojom::Role::kTree:
     case ax::mojom::Role::kListBox:
     case ax::mojom::Role::kRadioGroup:
+    case ax::mojom::Role::kDescriptionList:
       return true;
     default:
       return false;