childCount       1023 Source/core/loader/FrameLoader.cpp     childrenToDetach.reserveCapacity(m_frame->tree().childCount());
childCount        165 Source/core/page/FrameTree.cpp     name.appendNumber(childCount() - 1);
childCount         56 Source/core/page/FrameTree.h         unsigned childCount() const;
childCount         95 public/web/WebAXObject.h     BLINK_EXPORT unsigned childCount() const;