Fix selection handles in vertical writing modes.

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 1567 matching lines @@
     if (!visibleSelection.isCaretOrRange())
         return false;
 
     // Non-editable caret selections lack any kind of UI affordance, and
     // needn't be tracked by the client.
     if (visibleSelection.isCaret() && !visibleSelection.isContentEditable())
         return false;
 
     VisiblePosition visibleStart(visibleSelection.visibleStart());
     RenderedPosition renderedStart(visibleStart);
-    renderedStart.positionInGraphicsLayerBacking(selection.start);
+    renderedStart.positionInGraphicsLayerBacking(selection.start, true);
     if (!selection.start.layer)
         return false;
 
-    if (visibleSelection.isCaret()) {
-        selection.end = selection.start;
-    } else {
-        VisiblePosition visibleEnd(visibleSelection.visibleEnd());
-        RenderedPosition renderedEnd(visibleEnd);
-        renderedEnd.positionInGraphicsLayerBacking(selection.end);
-        if (!selection.end.layer)
-            return false;
-    }
+    VisiblePosition visibleEnd(visibleSelection.visibleEnd());
+    RenderedPosition renderedEnd(visibleEnd);
+    renderedEnd.positionInGraphicsLayerBacking(selection.end, false);
+    if (!selection.end.layer)
+        return false;
 
     selection.type = visibleSelection.selectionType();
     selection.isEditable = visibleSelection.isContentEditable();
     if (selection.isEditable) {
         if (HTMLTextFormControlElement* enclosingTextFormControlElement = enclosingTextFormControl(visibleSelection.rootEditableElement()))
             selection.isEmptyTextFormControl = enclosingTextFormControlElement->value().isEmpty();
     }
-    selection.start.isTextDirectionRTL = primaryDirectionOf(*visibleSelection.start().anchorNode()) == RTL;
-    selection.end.isTextDirectionRTL = primaryDirectionOf(*visibleSelection.end().anchorNode()) == RTL;
+    selection.start.isTextDirectionRTL |= primaryDirectionOf(*visibleSelection.start().anchorNode()) == RTL;
+    selection.end.isTextDirectionRTL |= primaryDirectionOf(*visibleSelection.end().anchorNode()) == RTL;
 
     return true;
 }
 
 void FrameView::updateCompositedSelectionIfNeeded()
 {
     if (!RuntimeEnabledFeatures::compositedSelectionUpdateEnabled())
         return;
 
     TRACE_EVENT0("blink", "FrameView::updateCompositedSelectionIfNeeded");
@@ skipping 2388 matching lines @@
     return m_hiddenForThrottling && m_crossOriginForThrottling;
 }
 
 LayoutBox& FrameView::boxForScrollControlPaintInvalidation() const
 {
     ASSERT(layoutView());
     return *layoutView();
 }
 
 } // namespace blink