20939 - Store image dimensions in cache

Status: RESOLVED DUPLICATE of bug 47660

(Core :: Layout, defect, P3)

Description

[Warren Harris]

Mass move of all bugs without target milestones to M13.

Comment 1

[Scott Furman]

Troy, you may not be the right person for this, but please see that this bug
finds a good home...

The network data cache allows any number of "annotations" to be placed on a URL.
These annotations have a lifetime that is potentially much longer than that of
the associated cached content, since the URL metadata is not erased as long as
the cache deems a URL as "important", i.e. likely to be loaded again in the
future.

An annotation could be used to persistently store a hint for the dimensions of
an image, hence avoiding a reflow in cases where an image's data is not in the
image cache or the network cache, but it has been loaded in the past.

Comment 2

[Scott Furman]

Attachment: code to store image dimensions in cache (untested)

Comment 3

[Hixie (not reading bugmail)]

This sounds like a good idea. So long as we fall back on the real dimensions
should they turn out to have changed... :-)

Comment 4

[Kevin McCluskey (gone)]

reassigning to dcone. Triaging Troy's bug list.

Comment 5

[dcone (gone)]

Pam.. is this your area?

Comment 6

[leger]

Putting on [nsbeta2-] radar. Not critical to beta2.  If you can give PDT info on 
 big win, low risk for PR2, let us know. 

Comment 7

[pnunn]

Neeti:
Does this sound like it would help performance?
The recommendation was fur's.
-p

Comment 8

[Daniel Veditz [:dveditz]]

Adding nsbeta2 keyword to bugs with nsbeta2 triage value in status field so the 
queries don't get screwed up

Comment 9

[pnunn]

dupe of 47660. (#47660 has more info on issue.).
-p

*** This bug has been marked as a duplicate of 47660 ***