Bug 945640 - [HFP] Pop up volume UI when bluetooth headset adjusts volume during call, r=echou
Bumping gaia.json for 2 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3db379fdae0f
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #13962 from davidflanagan/bug935273

Bug 935273: wip patch for testing

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https://hg.mozilla.org/integration/gaia-central/rev/d54130434d21
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 935273: don't decode full-size image during pick activity unless necessary

Modify ImageEditor to have a "crop only" mode where it displays
only a preview image and crop handles and does not do other image editing.
In this mode it does not decode the full-size image unless the user actually
crops the image.

Address review comments; handle orientation change; handle case where image has no preview