tree 66b84d4b6dd1e716ec45277b8792415a503d5910
parent efed29a2637af4ac167c04b5ccfcb2bf45ee090a
author Noam Rosenthal <noam.j.rosenthal@gmail.com> 1602790462 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1602795279 -0700

Read image resolution from EXIF, apply to intrinsic size
See https://github.com/whatwg/html/pull/5574

Currently applies to JPEG only.

Use the EXIF resolution/size information we read from the
JPEG image to determine a density-corrected preferred size,
which overrides the intrinsic size of the image.

We only apply this intrinsic size when an image has both
resolution and size information in its exif.

When asking an Image for display size, the preferred size
is returned, and the source rect for reading from the image
is scaled when applicable.

Added many WPT reference tests.

Bug: 1069755
Change-Id: I01a38c72bb46974a0c112175934cd3c2c48607a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2292219
Commit-Queue: Stephen Chenney <schenney@chromium.org>
Reviewed-by: Stephen Chenney <schenney@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817600}