The test is failed on Win7 bot https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win%207%20Tests%20x64%20%281%29/45312


[ RUN      ] PlatformThreadWinTest.SetBackgroundThreadModeFailsInIdlePriorityProcess
../../base/threading/platform_thread_win_unittest.cc(53): error: Expected equality of these values:
  (-15)
    Which is: -15
  ::GetThreadPriority(thread_handle)
    Which is: 0
Stack trace:
Backtrace:
	testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop [0x00000001403FDB27+87]

Source code
  if (win::GetVersion() == win::VERSION_WIN7)
    EXPECT_EQ(THREAD_PRIORITY_IDLE, ::GetThreadPriority(thread_handle));
  else
    EXPECT_EQ(THREAD_PRIORITY_NORMAL, ::GetThreadPriority(thread_handle));
  internal::AssertMemoryPriority(thread_handle, MEMORY_PRIORITY_VERY_LOW);