getConservativeBounds returns the conservative bounding box of the clip in device (as opposed to canvas) coordinates.

This an abstract SkPictureRecord subclass that intercepts draw calls and computes an axis-aligned bounding box for each draw that it sees, subclasses implement handleBBox() which will be called every time we get a new bounding box. -This is an abst

An R-Tree implementation. In short, it is a balanced n-ary tree containing a hierarchy of bounding rectangles.

This component has a _single_ role: to compute exact outline bounding boxes. -This component has a _single_ role: to compute exact outline bounding boxes.