Remove SVGTextLayoutEngine::m_pathLayoutBoxes

Line boxes are added to this vector, and finalizeTransformMatrices()
iterates through it. The latter will however never do anything for
these line boxes, because layoutTextBoxes() is the only thing that adds
boxes to the map that will cause finalizeTransformMatrices() to have an
effect.

BUG=486669

Review URL: https://codereview.chromium.org/1157253002

git-svn-id: svn://svn.chromium.org/blink/trunk@195997 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed