Exclude tests that takes too long on Valgrind mac.

BUG=542535

Review URL: https://codereview.chromium.org/1411423008

Cr-Commit-Position: refs/heads/master@{#356649}

tools/valgrind/gtest_exclude/base_unittests.gtest_mac.txt

@@ -21,3 +21,10 @@ MessageLoopTestTypeDefault.RecursivePosts
 
 # Check-fails on Valgrind/Mac, see https://crbug.com/481290
 MessagePumpLibeventTest.QuitWatcher
+
+# Takes too long to run. crbug.com/542535.
+AllocationRegisterTest.OverflowDeathTest
+MemoryAllocatorDumpTest.ForbidDuplicatesDeathTest
+ProcessUtilTest.GetAppOutputRestrictedNoZombies
+TraceEventCallbackTest.TraceEventCallbackWhileFull
+TraceEventTestFixture.TestTraceFlush

tools/valgrind/gtest_exclude/media_unittests.gtest_mac.txt

@@ -7,3 +7,10 @@ VideoFrameSchedulerImplTest.EventualDisplay
 
 # Times out under Valgrind, http://crbug.com/444578
 PipelineIntegrationTest.*
+
+# Takes too long to run. crbug.com/542535.
+SingleVersusMultithreaded/VirtualAudioInputStreamTest.MultipleOutputs/1
+SingleVersusMultithreaded/VirtualAudioInputStreamTest.MultipleOutputs/0
+SingleVersusMultithreaded/VirtualAudioInputStreamTest.ComprehensiveTest/1
+SingleVersusMultithreaded/VirtualAudioInputStreamTest.ComprehensiveTest/0
+VideoRendererAlgorithmTest.CadenceBasedTest