Fix Path_Delegate reset

Path_Delegate.reset was not clearing the last point when called. This
caused some vector drawables that relied on relative position to fail to
render correctly.

Bug: http://b.android.com/91383
Bug: http://b.android.com/203797

Change-Id: Id250ecf8a5a5c66671aa8d3ddd213996f824fd56
(cherry picked from commit d6db7133af7b5aed76d83c17b60b27742608a2df)
6 files changed