Kris Maglione 8340513b0c Bug 1463287: Add QueryInterface helper macro for concrete class types. r=bz ... Using concrete class types with static IIDs in QueryInterface methods is a pretty common pattern which isn't supported by any existing helper macros. That's lead to separate ad-hoc implementations, with varying degrees of dodginess, being scattered around the tree. This patch adds a helper macro with a canonical (and safe) implementation, and updates existing ad-hoc users to use it. MozReview-Commit-ID: HaTGF7MN5Cv --HG-- extra : rebase_source : ace930129d85960d22bc3048ca3bb19bbbd4a63e extra : histedit_source : 03a87f746d957789d41381e4e1bfcc4fd7eebaf2%2C9c5bae9feeeef7721105db67be0f83e0ded66bb7		2018-05-21 16:33:18 -07:00
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appshell	Bug 1463287: Add QueryInterface helper macro for concrete class types. r=bz	2018-05-21 16:33:18 -07:00