Cherry pick PR #3157: Migrate trivial pthread_mutex calls #107

Job	Run time
android-arm / initialize	47s
android-arm64 / initialize	39s
android-x86 / initialize	46s
android-arm64 / docker-build-image	1m 10s
android-arm64 / docker-unittest-image	0s
android-arm / docker-build-image	1m 7s
android-arm / docker-unittest-image	0s
android-x86 / docker-build-image	1m 9s
android-x86 / docker-unittest-image	0s
android-arm64 / arm64_devel	18m 28s
android-arm64 / arm64_debug	20m 28s
android-arm64 / arm64_qa	7m 56s
android-arm64 / arm64_gold	7m 54s
android-arm / arm_devel	20m 35s
android-arm / arm_debug	17m 27s
android-arm / arm_qa	7m 41s
android-arm / arm_gold	9m 4s
android-x86 / x86_devel	19m 23s
android-x86 / x86_debug	22m 8s
android-x86 / x86_qa	8m 12s
android-x86 / x86_gold	8m 22s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
upload-release-artifacts	28s
	2h 53m 44s

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