fixup! Introduce SupportsARIAExpanded() for aria-expanded

Chrome/VoiceOver didn't narrates `aria-expanded` state in latest code.
We fix from AriaRoleAttribute() to RoleValue() in SupportsARIAExpanded.

Bug: 824465
Change-Id: Ib9ded5bbf84ad59f96cd2eb06cdd18eb537d8224
Reviewed-on: https://chromium-review.googlesource.com/989633
Commit-Queue: Nektarios Paisios <nektar@chromium.org>
Reviewed-by: Nektarios Paisios <nektar@chromium.org>
Reviewed-by: Aaron Leventhal <aleventhal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548140}

content/test/data/accessibility/html/action-verbs-expected-blink.txt

@@ -18,7 +18,7 @@ rootWebArea name='Action verbs'
 ++radioButton defaultActionVerb=check checkedState=false
 ++switch name='ARIA Switch' defaultActionVerb=check checkedState=false
 ++details
-++++disclosureTriangle name='Summary' defaultActionVerb=press
+++++disclosureTriangle collapsed name='Summary' defaultActionVerb=press
 ++++++staticText name='Summary'
 ++++++++inlineTextBox name='Summary'
 ++popUpButton collapsed haspopup defaultActionVerb=open

content/test/data/accessibility/html/action-verbs-expected-win.txt

@@ -15,7 +15,7 @@ ROLE_SYSTEM_DOCUMENT name='Action verbs' READONLY FOCUSABLE
 ++ROLE_SYSTEM_RADIOBUTTON FOCUSABLE IA2_STATE_CHECKABLE checkable:true default_action='check' action_name='check'
 ++IA2_ROLE_TOGGLE_BUTTON name='ARIA Switch' FOCUSABLE IA2_STATE_CHECKABLE checkable:true default_action='check' action_name='check'
 ++ROLE_SYSTEM_GROUPING
-++++ROLE_SYSTEM_PUSHBUTTON name='Summary' FOCUSABLE default_action='press' action_name='press'
+++++ROLE_SYSTEM_PUSHBUTTON name='Summary' COLLAPSED FOCUSABLE default_action='press' action_name='press'
 ++++++ROLE_SYSTEM_STATICTEXT name='Summary'
 ++ROLE_SYSTEM_COMBOBOX COLLAPSED FOCUSABLE HASPOPUP default_action='open' action_name='open'
 ++++ROLE_SYSTEM_LIST INVISIBLE

content/test/data/accessibility/html/details-expected-blink.txt

 rootWebArea
 ++details
-++++disclosureTriangle name='details tag'
+++++disclosureTriangle collapsed name='details tag'
 ++++++staticText name='details tag'
 ++++++++inlineTextBox name='details tag'
 ++details

content/test/data/accessibility/html/details-expected-mac.txt

 AXWebArea AXRoleDescription='HTML content'
 ++AXGroup AXRoleDescription='group'
-++++AXButton AXRoleDescription='disclosure triangle' AXTitle='details tag'
+++++AXButton AXRoleDescription='disclosure triangle' AXTitle='details tag' AXExpanded='0'
 ++++++AXStaticText AXRoleDescription='text' AXValue='details tag'
 ++AXGroup AXRoleDescription='group'
-++++AXButton AXRoleDescription='disclosure triangle' AXTitle='details tag open'
+++++AXButton AXRoleDescription='disclosure triangle' AXTitle='details tag open' AXExpanded='1'
 ++++++AXStaticText AXRoleDescription='text' AXValue='details tag open'
 ++++AXGroup AXRoleDescription='group'
 ++++++AXStaticText AXRoleDescription='text' AXValue='The details tag with open specifies that the details should be visible (open) to the user.'

content/test/data/accessibility/html/details-expected-win.txt

 ROLE_SYSTEM_DOCUMENT READONLY FOCUSABLE
 ++ROLE_SYSTEM_GROUPING
-++++ROLE_SYSTEM_PUSHBUTTON name='details tag' FOCUSABLE
+++++ROLE_SYSTEM_PUSHBUTTON name='details tag' COLLAPSED FOCUSABLE
 ++++++ROLE_SYSTEM_STATICTEXT name='details tag'
 ++ROLE_SYSTEM_GROUPING
-++++ROLE_SYSTEM_PUSHBUTTON name='details tag open' FOCUSABLE
+++++ROLE_SYSTEM_PUSHBUTTON name='details tag open' EXPANDED FOCUSABLE
 ++++++ROLE_SYSTEM_STATICTEXT name='details tag open'
 ++++IA2_ROLE_PARAGRAPH
 ++++++ROLE_SYSTEM_STATICTEXT name='The details tag with open specifies that the details should be visible (open) to the user.'

content/test/data/accessibility/html/summary-expected-blink.txt

 rootWebArea
 ++details
-++++disclosureTriangle name='details tag'
+++++disclosureTriangle collapsed name='details tag'
 ++++++staticText name='details tag'
 ++++++++inlineTextBox name='details tag'
\ No newline at end of file

content/test/data/accessibility/html/summary-expected-win.txt

 ROLE_SYSTEM_DOCUMENT READONLY FOCUSABLE
 ++ROLE_SYSTEM_GROUPING
-++++ROLE_SYSTEM_PUSHBUTTON name='details tag' FOCUSABLE
+++++ROLE_SYSTEM_PUSHBUTTON name='details tag' COLLAPSED FOCUSABLE
 ++++++ROLE_SYSTEM_STATICTEXT name='details tag'
\ No newline at end of file

third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-nameSources-summary-expected.txt

@@ -31,7 +31,15 @@ Tests name sources in details and summary.
       }
     ]
   },
-  "properties": [],
+  "properties": [
+    {
+      "name": "expanded",
+      "value": {
+        "type": "booleanOrUndefined",
+        "value": false
+      }
+    }
+  ],
   "domNode": "summary#summary2"
 }
 {
@@ -75,7 +83,15 @@ Tests name sources in details and summary.
     "type": "computedString",
     "value": "summary3-title"
   },
-  "properties": [],
+  "properties": [
+    {
+      "name": "expanded",
+      "value": {
+        "type": "booleanOrUndefined",
+        "value": false
+      }
+    }
+  ],
   "domNode": "summary#summary3"
 }
 {
@@ -128,7 +144,15 @@ Tests name sources in details and summary.
     "type": "computedString",
     "value": "summary4-contents"
   },
-  "properties": [],
+  "properties": [
+    {
+      "name": "expanded",
+      "value": {
+        "type": "booleanOrUndefined",
+        "value": false
+      }
+    }
+  ],
   "domNode": "summary#summary4"
 }
 {
@@ -198,6 +222,13 @@ Tests name sources in details and summary.
     "value": "summary5-contents"
   },
   "properties": [
+    {
+      "name": "expanded",
+      "value": {
+        "type": "booleanOrUndefined",
+        "value": false
+      }
+    },
     {
       "name": "labelledby",
       "value": {

third_party/WebKit/Source/modules/accessibility/AXObject.cpp

@@ -1550,7 +1550,7 @@ bool AXObject::SupportsARIAActiveDescendant() const {
 }
 
 bool AXObject::SupportsARIAExpanded() const {
-  switch (AriaRoleAttribute()) {
+  switch (RoleValue()) {
     case kAlertDialogRole:
     case kAlertRole:
     case kArticleRole: