Keep track of fixed positioning in accessibility tree.

content/browser/accessibility/browser_accessibility_manager.cc

Index: content/browser/accessibility/browser_accessibility_manager.cc
diff --git a/content/browser/accessibility/browser_accessibility_manager.cc b/content/browser/accessibility/browser_accessibility_manager.cc
index 30099107b3367fd38b4c252f607dfce51932bd38..cfecd78813b7aef6f59e69a1cc4a6631a1b2b875 100644
--- a/content/browser/accessibility/browser_accessibility_manager.cc
+++ b/content/browser/accessibility/browser_accessibility_manager.cc
@@ -361,6 +361,7 @@ void BrowserAccessibilityManager::OnAccessibilityEvents(
   // Process all changes to the accessibility tree first.
   for (uint32_t index = 0; index < details.size(); ++index) {
     const AXEventNotificationDetails& detail = details[index];
+    LOG(ERROR) << detail.update.ToString();
     if (!tree_->Unserialize(detail.update)) {
       if (delegate_) {
         LOG(ERROR) << tree_->error();
@@ -466,6 +467,7 @@ void BrowserAccessibilityManager::OnAccessibilityEvents(
 
 void BrowserAccessibilityManager::OnLocationChanges(
     const std::vector<AccessibilityHostMsg_LocationChangeParams>& params) {
+  LOG(ERROR) << "OnLocationChanges";
   for (size_t i = 0; i < params.size(); ++i) {
     BrowserAccessibility* obj = GetFromID(params[i].id);
     if (!obj)
@@ -473,7 +475,9 @@ void BrowserAccessibilityManager::OnLocationChanges(
     ui::AXNode* node = obj->node();
     node->SetLocation(params[i].new_location.offset_container_id,
                       params[i].new_location.bounds,
-                      params[i].new_location.transform.get());
+                      params[i].new_location.transform.get(),
+                      params[i].new_location.is_fixed_positioned);
+    LOG(ERROR) << "Location update: " << node->data().ToString();
   }
   SendLocationChangeEvents(params);
 }