The initial shell in bug 1239437 uses a regular <iframe> to display the web content. This is not what we want to actually ship. Instead, we need to change to <iframe mozbrowser>, which gives a truly separate browser runtime (similar to <xul:browser>), allows running in a child process, etc. Bug 1238160 tracks enabling this feature on desktop. Once it is, we can enable it in RDM here.

I'm removing swapFrameLoaders (bug 1242644) from the scope of this bug, as it's making things too complex to switch to mozbrowser *and* use swapFrameLoaders in the same task. Bug 1240913 is likely where we'll make use of swapFrameLoaders.

Review commit: https://reviewboard.mozilla.org/r/43973/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43973/

Review commit: https://reviewboard.mozilla.org/r/43975/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43975/

Review commit: https://reviewboard.mozilla.org/r/43977/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43977/

Review commit: https://reviewboard.mozilla.org/r/43979/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43979/

Review commit: https://reviewboard.mozilla.org/r/43981/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43981/

This also adds the test infrastructure for detecting content resizing. Review commit: https://reviewboard.mozilla.org/r/43983/diff/#index_header See other reviews: https://reviewboard.mozilla.org/r/43983/

Comment on attachment 8737437 [details] MozReview Request: Bug 1240896 - Use iframe mozbrowser in RDM. r=gl https://reviewboard.mozilla.org/r/43973/#review40693

Comment on attachment 8737438 [details] MozReview Request: Bug 1240896 - Uplift dimensions to avoid recreating iframe. r=gl https://reviewboard.mozilla.org/r/43975/#review40711

Comment on attachment 8737439 [details] MozReview Request: Bug 1240896 - Reorder imports to match style. r=gl https://reviewboard.mozilla.org/r/43977/#review40713

Comment on attachment 8737440 [details] MozReview Request: Bug 1240896 - Port browser_resize_cmd.js, add resize to support. r=gl https://reviewboard.mozilla.org/r/43979/#review40729 I think the commit msg should be: Port browser_responsive_cmd.js, add gcli resize support

Comment on attachment 8737441 [details] MozReview Request: Bug 1240896 - Load frame script into RDM browser. r=gl https://reviewboard.mozilla.org/r/43981/#review40757

Comment on attachment 8737442 [details] MozReview Request: Bug 1240896 - Port browser_device_width.js to new RDM. r=gl https://reviewboard.mozilla.org/r/43983/#review40803

I noticed that we will get an error for google.com with these patches applied. STR: 1. Navigate to http://google.com/ 2. Open RDM 3. Observe console error DOMException [SyntaxError: "An invalid or illegal string was specified" code: 12 nsresult: 0x8053000c index.js:125:5

(In reply to Gabriel Luong [:gl] (ΦωΦ) from comment #12) > Comment on attachment 8737440 [details] > MozReview Request: Bug 1240896 - Port browser_resize_cmd.js, add resize to > support. r=gl > > https://reviewboard.mozilla.org/r/43979/#review40729 > > I think the commit msg should be: Port browser_responsive_cmd.js, add gcli > resize support Okay, renamed.

(In reply to Gabriel Luong [:gl] (ΦωΦ) from comment #15) > I noticed that we will get an error for google.com with these patches > applied. > > STR: > 1. Navigate to http://google.com/ > 2. Open RDM > 3. Observe console error > DOMException [SyntaxError: "An invalid or illegal string was specified" > code: 12 > nsresult: 0x8053000c > index.js:125:5 Ah, good catch, I needed to escape any instances of & in the URL.

https://hg.mozilla.org/integration/fx-team/rev/0070ee7b52a3 https://hg.mozilla.org/integration/fx-team/rev/d9b17ba5ebc2 https://hg.mozilla.org/integration/fx-team/rev/a6c421e444d0 https://hg.mozilla.org/integration/fx-team/rev/311e7a5e811b https://hg.mozilla.org/integration/fx-team/rev/9bf82cf8e9a2 https://hg.mozilla.org/integration/fx-team/rev/6d6b9a38bc48 https://hg.mozilla.org/integration/fx-team/rev/01267cc7cc8f https://hg.mozilla.org/integration/fx-team/rev/c725fad03087 https://hg.mozilla.org/integration/fx-team/rev/8fc46323cee6

https://hg.mozilla.org/mozilla-central/rev/0070ee7b52a3 https://hg.mozilla.org/mozilla-central/rev/d9b17ba5ebc2 https://hg.mozilla.org/mozilla-central/rev/a6c421e444d0 https://hg.mozilla.org/mozilla-central/rev/311e7a5e811b https://hg.mozilla.org/mozilla-central/rev/9bf82cf8e9a2 https://hg.mozilla.org/mozilla-central/rev/6d6b9a38bc48 https://hg.mozilla.org/mozilla-central/rev/01267cc7cc8f https://hg.mozilla.org/mozilla-central/rev/c725fad03087 https://hg.mozilla.org/mozilla-central/rev/8fc46323cee6