Support background loading of raw input streams - Fixed generics (mix up of two ImageLoader types) - Removed unused code for handling headers, methods, request parameters - Use `long` for progress as streams may exceed 2 GB - Improved documentation of Image regarding background loading
------------- Commit messages: - Support background loading of raw input streams Changes: https://git.openjdk.org/jfx/pull/1875/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1875&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8361286 Stats: 304 lines in 11 files changed: 180 ins; 72 del; 52 mod Patch: https://git.openjdk.org/jfx/pull/1875.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1875/head:pull/1875 PR: https://git.openjdk.org/jfx/pull/1875
