Prune createVisibleSelectionDeprecated from DragController

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 c7938b4518e0a78294801d7a639abfd978e3bb52..ed88ea7ff8a6e4d4072922eee39a0e68990dcaab 100644
--- a/third_party/WebKit/Source/core/page/DragController.cpp
+++ b/third_party/WebKit/Source/core/page/DragController.cpp
@@ -460,8 +460,11 @@ static bool setSelectionToDragCaret(LocalFrame* frame,
                                     const IntPoint& point) {
   frame->selection().setSelection(dragCaret);
   if (frame->selection().isNone()) {
-    dragCaret =
-        createVisibleSelectionDeprecated(frame->positionForPoint(point));
+    // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
+    // needs to be audited.  See http://crbug.com/590369 for more details.
+    frame->document()->updateStyleAndLayoutIgnorePendingStylesheets();
+
+    dragCaret = createVisibleSelection(frame->positionForPoint(point));
     frame->selection().setSelection(dragCaret);
     range = createRange(dragCaret.toNormalizedEphemeralRange());
   }
@@ -475,9 +478,8 @@ DispatchEventResult DragController::dispatchTextInputEventFor(
   String text = m_page->dragCaretController().isContentRichlyEditable()
                     ? ""
                     : dragData->asPlainText();
-  Element* target =
-      innerFrame->editor().findEventTargetFrom(createVisibleSelectionDeprecated(
-          m_page->dragCaretController().caretPosition()));
+  Element* target = innerFrame->editor().findEventTargetFrom(
+      createVisibleSelection(m_page->dragCaretController().caretPosition()));

[tkent, 2016/10/03 23:37:09]

Please explain why we can use non-deprecated version in the CL description. 
It's not obvious.

   return target->dispatchEvent(
       TextEvent::createForDrop(innerFrame->domWindow(), text));
 }
@@ -522,8 +524,18 @@ bool DragController::concludeEditDrag(DragData* dragData) {
     return false;
   }
 
-  VisibleSelection dragCaret = createVisibleSelectionDeprecated(
-      m_page->dragCaretController().caretPosition());
+  if (m_page->dragCaretController().hasCaret()) {
+    // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
+    // needs to be audited.  See http://crbug.com/590369 for more details.
+    m_page->dragCaretController()
+        .caretPosition()
+        .position()
+        .document()
+        ->updateStyleAndLayoutIgnorePendingStylesheets();
+  }
+
+  VisibleSelection dragCaret =
+      createVisibleSelection(m_page->dragCaretController().caretPosition());
   m_page->dragCaretController().clear();
   // |innerFrame| can be removed by event handler called by
   // |dispatchTextInputEventFor()|.
@@ -787,7 +799,7 @@ static void prepareDataTransferForImageDrag(LocalFrame* source,
     Range* range = source->document()->createRange();
     range->selectNode(node, ASSERT_NO_EXCEPTION);
     source->selection().setSelection(
-        createVisibleSelectionDeprecated(EphemeralRange(range)));
+        createVisibleSelection(EphemeralRange(range)));
   }
   dataTransfer->declareAndWriteDragImage(
       node, !linkURL.isEmpty() ? linkURL : imageURL, label);