Move element flags from ElementRareData to NodeRareData

By doing this, they can be packed together with the existing bit-field
member NodeRareData::m_connectedFrameCount, and save some space.

Impact according to sizeof(ElementRareData), on 64-bit Linux (GCC and
Clang alike,) is a modest 8 byte saving, from 144 bytes to 136 bytes.

BUG=

Review URL: https://codereview.chromium.org/201153006

git-svn-id: svn://svn.chromium.org/blink/trunk@169644 bbb929c8-8fbe-4397-9dbb-9b2b20218538
5 files changed
tree: c8ec7136d9148686ff528ca9e2c931e1bbf3fa56
  1. third_party/