Add crash expectations for some MediaRecorder-related layout tests on MSAN

third_party/WebKit/LayoutTests/MSANExpectations

Index: third_party/WebKit/LayoutTests/MSANExpectations
diff --git a/third_party/WebKit/LayoutTests/MSANExpectations b/third_party/WebKit/LayoutTests/MSANExpectations
index b54417b4d198d77c1cf01e842a003243c76ba583..937d872079d98e62772b047506fb28157d0fe49c 100644
--- a/third_party/WebKit/LayoutTests/MSANExpectations
+++ b/third_party/WebKit/LayoutTests/MSANExpectations
@@ -45,3 +45,10 @@ crbug.com/577889 [ Linux ] fast/js/typed-array-allocation-failure.html [ Crash ]
 
 # These tests use OpenGl, which crashes on MSAN builds due to missing instrumentation
 crbug.com/555703 [ Linux ] virtual/media-gpu-accelerated [ Skip ]
+
+# MSAN finds a use-of-initialized-value when running these tests.
+crbug.com/701170 [ Linux ] fast/mediacapturefromelement/CanvasCaptureMediaStream-capture-out-of-DOM-element.html [ Crash ]
+crbug.com/701170 [ Linux ]fast/mediacapturefromelement/CanvasCaptureMediaStream-imagebitmaprenderingcontext.html [ Crash ]
+crbug.com/701170 [ Linux ]fast/mediacapturefromelement/CanvasCaptureMediaStream-offscreencanvas.html [ Crash ]
+crbug.com/701170 [ Linux ]fast/mediacapturefromelement/CanvasCaptureMediaStream-framerate-0.html [ Crash ]
+crbug.com/701170 [ Linux ]fast/mediarecorder/MediaRecorder-error.html [ Crash ]