optimize png images using zopflipng

[PeterDaveHello]

Use Google's zopflipng to re-compress png images losslessly as below:

 extensions/b2g/images/div_line_left.png           | Bin 174 -> 169 bytes
 extensions/b2g/images/[email protected]      | Bin 196 -> 185 bytes
 extensions/b2g/images/[email protected]        | Bin 319 -> 295 bytes
 extensions/b2g/images/div_line_right.png          | Bin 173 -> 166 bytes
 extensions/b2g/images/[email protected]     | Bin 193 -> 184 bytes
 extensions/b2g/images/[email protected]       | Bin 319 -> 295 bytes
 extensions/b2g/images/document_bg.png             | Bin 609 -> 560 bytes
 extensions/b2g/images/icon_next_page.png          | Bin 325 -> 310 bytes
 extensions/b2g/images/[email protected]     | Bin 343 -> 338 bytes
 extensions/b2g/images/icon_previous_page.png      | Bin 384 -> 372 bytes
 extensions/b2g/images/[email protected] | Bin 396 -> 395 bytes
 extensions/b2g/images/[email protected]       | Bin 1229 -> 1170 bytes
 extensions/b2g/images/[email protected]      | Bin 1090 -> 1051 bytes
 extensions/b2g/images/spinner.png                 | Bin 3225 -> 2759 bytes
 extensions/b2g/images/toolbar_background.png      | Bin 4695 -> 4657 bytes
 extensions/chromium/icon128.png                   | Bin 3463 -> 2989 bytes
 extensions/chromium/icon16.png                    | Bin 622 -> 594 bytes
 extensions/chromium/icon19.png                    | Bin 712 -> 679 bytes
 extensions/chromium/icon38.png                    | Bin 1330 -> 1300 bytes
 extensions/chromium/icon48.png                    | Bin 1691 -> 1671 bytes
 extensions/firefox/icon.png                       | Bin 1612 -> 1597 bytes
 extensions/firefox/icon64.png                     | Bin 2089 -> 2003 bytes
 web/images/texture.png                            | Bin 2418 -> 2417 bytes
 web/images/toolbarButton-menuArrows.png           | Bin 108 -> 107 bytes
 web/images/[email protected]   | Bin 871 -> 859 bytes
 web/images/[email protected]     | Bin 220 -> 219 bytes
 web/images/treeitem-collapsed-rtl.png             | Bin 183 -> 143 bytes
 web/images/[email protected]          | Bin 205 -> 167 bytes

[timvandermeij]

There is a problem with web/images/loading-small.png and web/images/[email protected]. Those are animated PNGs, but this patch removed the animation. We might need to exclude these two or somehow let zopflipng know that it is an animated PNG. Could you look into that?

[PeterDaveHello]

Okay, I'll take a look at this problem.

[PeterDaveHello]

Problem confirmed, reported to zopflipng upstream here: google/zopfli#118, rollback those two images to origin. Thanks @timvandermeij.

[timvandermeij]

/botio-linux preview

[pdfjsbot]

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Live output at: http://107.21.233.14:8877/8c91f1639cd07dd/output.txt

[pdfjsbot]

From: Bot.io (Linux)

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Full output at http://107.21.233.14:8877/8c91f1639cd07dd/output.txt

Total script time: 1.08 mins

Published

• Viewer: http://107.21.233.14:8877/8c91f1639cd07dd/web/viewer.html
• B2G Viewer: http://107.21.233.14:8877/8c91f1639cd07dd/extensions/b2g/content/web/viewer.html
• Extension: http://107.21.233.14:8877/8c91f1639cd07dd/extensions/firefox/pdf.js.xpi

[timvandermeij]

Thank you!