Move hasRenderedNonAnonymousDescendantsWithHeight() to VisibleUnits.cpp from Position.cpp

Source/core/editing/VisibleUnits.cpp

Index: Source/core/editing/VisibleUnits.cpp
diff --git a/Source/core/editing/VisibleUnits.cpp b/Source/core/editing/VisibleUnits.cpp
index 5b5ffa9b7f9ba58ca66e4e57fa0a9fe13cc2715b..88b7d3ec67f5fd222c3ad2ac90b1032d6e3ee68b 100644
--- a/Source/core/editing/VisibleUnits.cpp
+++ b/Source/core/editing/VisibleUnits.cpp
@@ -48,8 +48,10 @@
 #include "core/layout/HitTestRequest.h"
 #include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutBlockFlow.h"
+#include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutView.h"
+#include "core/layout/line/InlineIterator.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/paint/DeprecatedPaintLayer.h"
 #include "platform/Logging.h"
@@ -1450,6 +1452,25 @@ LayoutRect localCaretRectOfPosition(const PositionWithAffinity& position, Layout
     return layoutObject->localCaretRect(boxPosition.inlineBox, boxPosition.offsetInBox);
 }
 
+static int boundingBoxLogicalHeight(LayoutObject *o, const IntRect &rect)
+{
+    return o->style()->isHorizontalWritingMode() ? rect.height() : rect.width();
+}
+
+bool hasRenderedNonAnonymousDescendantsWithHeight(LayoutObject* layoutObject)
+{
+    LayoutObject* stop = layoutObject->nextInPreOrderAfterChildren();
+    for (LayoutObject *o = layoutObject->slowFirstChild(); o && o != stop; o = o->nextInPreOrder()) {
+        if (o->nonPseudoNode()) {
+            if ((o->isText() && boundingBoxLogicalHeight(o, toLayoutText(o)->linesBoundingBox()))
+                || (o->isBox() && toLayoutBox(o)->pixelSnappedLogicalHeight())
+                || (o->isLayoutInline() && isEmptyInline(LineLayoutItem(o)) && boundingBoxLogicalHeight(o, toLayoutInline(o)->linesBoundingBox())))
+                return true;
+        }
+    }
+    return false;
+}
+
 VisiblePosition visiblePositionForContentsPoint(const IntPoint& contentsPoint, LocalFrame* frame)
 {
     HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping;