| Log Message: |
Fix threading races on AudioDSPKernelProcessor::m_kernels
AudioDSPKernelProcessor::m_kernels is accessed by the main thread and
the Audio Device thread, and thus should be protected by mutex.
This mutex implementation is consistent with that of ConvolverNode::m_reverb.
See the crash report for more details: https://cluster-fuzz.appspot.com/testcase?key=6662160935550976
BUG=271161
No tests because the crash depends on threading races and thus not reproducible.
Review URL: https://chromiumcodereview.appspot.com/23931002
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