Chrome's internal Blink algorithm that recursively walks a page's DOM layout tree to group text nodes into semantically cohesive passages of up to 200 words.
DocumentChunker is an internal algorithm in Google Chrome's rendering engine (Blink) that recursively traverses a page's DOM layout tree, grouping sibling and descendant text nodes into semantically cohesive passages of up to 200 words. Instead of treating a page as one flat blob of text, it breaks the content into meaningful chunks that reflect the document's own structure.
Chunking on the device like this is a building block for understanding pages where they are actually rendered. It sits close to other Chrome content systems such as DomDistiller and the Content Fetcher, it produces the passage-level units described in Content Node and Annotated Page Content (APC), and it yields the sort of passage a model later cites as a Grounding Chunk.
