Expand FrameSeleciton::isCaret() to increase chances of hoisting update layout

third_party/WebKit/Source/core/page/DragController.cpp

Index: third_party/WebKit/Source/core/page/DragController.cpp
diff --git a/third_party/WebKit/Source/core/page/DragController.cpp b/third_party/WebKit/Source/core/page/DragController.cpp
index 3ffdd07b1cb777aeb7d62b2fed3220872f9e27f0..37036d4a3fd1b3972c3b15f1764a655479a95508 100644
--- a/third_party/WebKit/Source/core/page/DragController.cpp
+++ b/third_party/WebKit/Source/core/page/DragController.cpp
@@ -1139,7 +1139,10 @@ bool DragController::startDrag(LocalFrame* src,
   } else if (state.m_dragType == DragSourceActionLink) {
     if (linkURL.isEmpty())
       return false;
-    if (src->selection().isCaret() && src->selection().isContentEditable()) {
+    if (src->selection()
+            .computeVisibleSelectionInDOMTreeDeprecated()
+            .isCaret() &&
+        src->selection().isContentEditable()) {
       // a user can initiate a drag on a link without having any text
       // selected.  In this case, we should expand the selection to
       // the enclosing anchor element