Prune CreateVisiblePositionDeprecated from adjustedSelectionStartForStyleComputation

third_party/WebKit/Source/core/editing/EditingStyle.cpp

Index: third_party/WebKit/Source/core/editing/EditingStyle.cpp
diff --git a/third_party/WebKit/Source/core/editing/EditingStyle.cpp b/third_party/WebKit/Source/core/editing/EditingStyle.cpp
index 2de2356513eb0261bce04b3b930249ffd414ae68..37c6177d142e6b33411b727cccb8dfc9a7f6e54c 100644
--- a/third_party/WebKit/Source/core/editing/EditingStyle.cpp
+++ b/third_party/WebKit/Source/core/editing/EditingStyle.cpp
@@ -1335,6 +1335,14 @@ EditingStyle* EditingStyle::styleAtSelectionStart(const VisibleSelection& select
     if (selection.isNone())
         return nullptr;
 
+    Document& document = *selection.start().document();
+
+    // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
+    // needs to be audited. see http://crbug.com/590369 for more details.
+    document.updateStyleAndLayoutIgnorePendingStylesheets();
+
+    DocumentLifecycle::DisallowTransitionScope disallowTransition(document.lifecycle());
+
     Position position = adjustedSelectionStartForStyleComputation(selection);
 
     // If the pos is at the end of a text node, then this node is not fully selected.