Remove base::Value::Get{Buffer,Size}

This change removes the deprecated base::Value::Get{Buffer(),Size()} and
replaces them with base::Value::GetBlob().{data(),size()} while
simplifing the code where appropriate.

BUG=646113

Review-Url: https://codereview.chromium.org/2841623003
Cr-Original-Commit-Position: refs/heads/master@{#467085}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 5328aff0ad17d3d17197c34659d0993cfc77e276
1 file changed