Disable Flaky benchmarks.system_health_smoke_tests.

tools/perf/benchmarks/system_health_smoke_test.py

Index: tools/perf/benchmarks/system_health_smoke_test.py
diff --git a/tools/perf/benchmarks/system_health_smoke_test.py b/tools/perf/benchmarks/system_health_smoke_test.py
index 54824551c20c64e57e2c5eeee4894fcc88ff8680..936f331bbfd91b6a9ebefc5aae69fc6cd5d5a3dd 100644
--- a/tools/perf/benchmarks/system_health_smoke_test.py
+++ b/tools/perf/benchmarks/system_health_smoke_test.py
@@ -45,6 +45,10 @@ _DISABLED_TESTS = frozenset({
   'benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_desktop.load:media:dailymotion',  # pylint: disable=line-too-long
   # crbug.com/624701
   'benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_mobile.load:games:bubbles',  # pylint: disable=line-too-long
+  # crbug.com/624840
+  'benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_mobile.load:tools:drive',  # pylint: disable=line-too-long
+  'benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_mobile.load:tools:gmail',  # pylint: disable=line-too-long
+  'benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_mobile.load:tools:dropbox',  # pylint: disable=line-too-long
 })