Disable flaky VideoRendererImpl test on M54 branch.

media/renderers/video_renderer_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 896 matching lines @@
   time_source_.StopTicking();
 
   // Providing the end of stream packet should remove all frames and exit.
   SatisfyPendingDecodeWithEndOfStream();
   EXPECT_CALL(mock_cb_, OnBufferingStateChange(BUFFERING_HAVE_ENOUGH));
   WaitForEnded();
   Destroy();
 }
 
 // Tests the case where underflow evicts all frames in the HAVE_ENOUGH state.
-TEST_F(VideoRendererImplTest, UnderflowEvictionWhileHaveEnough) {
+// Note: Disabled for merge into M54 since it is flaky there.
+TEST_F(VideoRendererImplTest, DISABLED_UnderflowEvictionWhileHaveEnough) {
   Initialize();
   QueueFrames("0 30 60 90 100");
 
   {
     SCOPED_TRACE("Waiting for BUFFERING_HAVE_ENOUGH");
     WaitableMessageLoopEvent event;
     EXPECT_CALL(mock_cb_, OnBufferingStateChange(BUFFERING_HAVE_ENOUGH))
         .WillOnce(RunClosure(event.GetClosure()));
     EXPECT_CALL(mock_cb_, FrameReceived(_)).Times(AnyNumber());
     EXPECT_CALL(mock_cb_, OnVideoNaturalSizeChange(_)).Times(1);
@@ skipping 260 matching lines @@
   QueueFrames("0 10 20 30");
   StartPlayingFrom(0);
   Flush();
   ASSERT_EQ(1u, frame_ready_cbs_.size());
   // This frame will be discarded.
   frame_ready_cbs_.front().Run();
   Destroy();
 }
 
 }  // namespace media