LayoutObject::absoluteBoundingBoxRectForRange() should take EphemeralRange

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

Index: third_party/WebKit/Source/core/editing/VisibleUnits.cpp
diff --git a/third_party/WebKit/Source/core/editing/VisibleUnits.cpp b/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
index f1da75b0e408206c7b87a6ce891b67ed7c7005fc..fe032de96309f39115ce4e43b1a725368d78255d 100644
--- a/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
+++ b/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
@@ -4048,4 +4048,38 @@ PositionInFlatTree skipWhitespace(const PositionInFlatTree& position) {
   return skipWhitespaceAlgorithm(position);
 }
 
+template <typename Strategy>
+static Vector<FloatQuad> textQuadAlgorithm(
+    const EphemeralRangeTemplate<Strategy>& range) {
+  const PositionTemplate<Strategy> startPosition = range.startPosition();
+  const PositionTemplate<Strategy> endPosition = range.endPosition();
+  Node* startContainer = startPosition.computeContainerNode();
+  DCHECK(startContainer);
+  Node* endContainer = endPosition.computeContainerNode();
+  DCHECK(endContainer);
+
+  Vector<FloatQuad> quad;
+  for (Node& node : range.nodes()) {
+    LayoutObject* layoutObject = node.layoutObject();
+    if (!layoutObject || !layoutObject->isText())
+      continue;
+    LayoutText* layoutText = toLayoutText(layoutObject);
+    unsigned startOffset =
+        node == startContainer ? startPosition.offsetInContainerNode() : 0;
+    unsigned endOffset = node == endContainer
+                             ? endPosition.offsetInContainerNode()
+                             : std::numeric_limits<unsigned>::max();
+    layoutText->absoluteQuadsForRange(quad, startOffset, endOffset);
+  }
+  return quad;
+}
+
+Vector<FloatQuad> textQuad(const EphemeralRange& range) {

[Xiaocheng, 2017/03/30 18:46:19]

nit: s/textQuad/textQuads/

+  return textQuadAlgorithm(range);
+}
+
+Vector<FloatQuad> textQuad(const EphemeralRangeInFlatTree& range) {

[Xiaocheng, 2017/03/30 18:46:19]

nit: nit: s/textQuad/textQuads/

+  return textQuadAlgorithm(range);
+}
+
 }  // namespace blink