Bug 1480834 - 8. Add x86-64 as rust target; r=nalexander r=froydnj Add x86-64 as a rust target so we can build Android for x86-64. Differential Revision: https://phabricator.services.mozilla.com/D5605

Bug 1480834 - 7. Add Android x86-64 tasks; r=nalexander r=dustin r=jlorenzo Add tasks for building Android for x86-64. Differential Revision: https://phabricator.services.mozilla.com/D5604

Bug 1480834 - 6. Add Android x86-64 configs; r=nalexander Add config files for building Android for x86-64. Differential Revision: https://phabricator.services.mozilla.com/D5603

Bug 1480834 - 5. Keep target flag when building for Android on Linux; r=glandium Currently, when building for Android x86-64 on Linux x86-64, we drop the '--target' flag, which causes the build to fail. This patch adds a check for OS mismatch, so we keep the '--target' flag in this situation. Differential Revision: https://phabricator.services.mozilla.com/D4483

Bug 1480834 - 4. Specify -Werror for pthread_cond_timedwait_monotonic_np check; r=glandium On 64-bit Android, `pthread_cond_timedwait_monotonic_np` is only available for API 28+. The issue is, even though the NDK header does not define `pthread_cond_timedwait_monotonic_np` for API 27 and below, the NDK library _does_ include the function (in order to support builds targeting API 28+). During our configure test, the compiler only emits a warning about `pthread_cond_timedwait_monotonic_np` being undefined, but linking succeeds because the function is present in the library. Because linking succeeds, the test inadvertently passes. This patch adds a '-Werror' flag to the compilation, so the warning turns into an error to make the test fail. Differential Revision: https://phabricator.services.mozilla.com/D4482

Bug 1480834 - 3. Fix linker compile errors under x86-64; r=glandium The linker has x86-64 support but currently fails to compile. This patch fixes these compile errors to make it build under x86-64. Differential Revision: https://phabricator.services.mozilla.com/D4481

Bug 1480834 - 2. Add x86-64 build support; r=nalexander Add x86-64 as an option for Android builds in the build system. Differential Revision: https://phabricator.services.mozilla.com/D4480

Bug 1480834 - 1. Add WebRTC config for x86_64 on Android; r=dminor Add GN config files and updated moz.build files for building WebRTC on Android x86_64. Differential Revision: https://phabricator.services.mozilla.com/D4479

Bug 1480834 - 0. Drop mips and update NDK platform to 16; r=jchen Differential Revision: https://phabricator.services.mozilla.com/D5602

Bug 1490042 - Only allow a single AutoClearTypeInferenceStateOnOOM to be active at once r=jandem r=sfink

Bug 1459544: Only assert that about page has CSP if nothing stopped the load of the doc. r=smaug

Bug 1490921: Fix error message when trying to link several Rust libs at once: r=froydnj

Merge m-c to inbound. a=merge

Backed out 4 changesets (bug 1490605) for build bustages CTypes.cpp CLOSED TREE Backed out changeset 29c2fa7d40f1 (bug 1490605) Backed out changeset 61250a398db0 (bug 1490605) Backed out changeset e911dd693280 (bug 1490605) Backed out changeset e54bd8035b43 (bug 1490605)

Bug 1404992 - Recreate the VideoConduit's video adapter when setting the send codec config. r=dminor This enables us to configure it for cropping to a certain resolution alignment in a future patch. For instance with simulcast, so we don't have to skip a layer because it is impossible to scale the highest layer any further without losing the aspect ratio.

Bug 1404992 - Don't rely on VideoAdapter in VideoConduit unittests. r=dminor

Bug 1404992 - Audit, document, assert and fix threading policy of VideoConduit. r=dminor, r=bwc

Bug 1404992 - Make VideoConduit scaling use a buffer pool. r=dminor

Bug 1404992 - Refactor incoming frames' scaling path. r=dminor

Bug 1404992 - Initialize VideoConduit members in declarations. r=dminor