+++ This bug was initially created as a clone of Bug #1301577 +++ Changes since last update: #7619 Only update the `max-height` of the `SecondaryToolbar` when it's actually visible #7609 Add a `enhanceTextSelection` preference #7600 Check that Type1C fonts does not actually contain OpenType font files (issue 7598) #7546 Don't duplicate the first entry in the `charCodeToGlyphId` map for CIDFontType2 fonts with a `CIDToGIDMap` that already mapped the first entry to a non-zero `glyphId` (issue 7544) #7621 Add a couple more, mostly `text`, reference tests for non-embedded symbolic fonts without included encoding information #7622 Text widget annotations: implement maximum length and text alignment #7624 Adding "proper" message port for fake worker. #7623 Change `src/core/jpx.js` to use the `error` utility function instead of using `throw new Error` #7626 Fix lint warnings in URL polyfill #7629 Text widget annotations: implement unit testing and sanitize data values #7634 Remove the deprecated `mozDash`/`mozDashOffset` canvas 2D context methods #7632 [EnhanceTextSelection] Make `expandTextDivs` more efficient by updating all styles at once instead of piecewise #7636 Drops unneeded HTTP refresh header for the extension.

Pushed by ryanvm@gmail.com: https://hg.mozilla.org/integration/fx-team/rev/46ce3df4161f Update pdf.js to version 1.5.464. r=bdahl