Move and rename RenderPart to LayoutPart.

Also make LayoutPart::renderName() pure virtual.
Everyone overrides it anyway (except in the unit test,
which was easy enough to fix).

BUG=450612
TBR=dsinclair@chromium.org,jochen@chromium.org,dmazzoni@chromium.org

Review URL: https://codereview.chromium.org/931003002

git-svn-id: svn://svn.chromium.org/blink/trunk@190282 bbb929c8-8fbe-4397-9dbb-9b2b20218538
70 files changed
tree: 1ede19fddb1b101b5f9ac6b8e7a161e76190625c
  1. third_party/