In org.webrtc.VideoCapturerAndroidTest#startWhileCameraIsAlreadyOpenAndCloseCamera, use a video renderer instead of a capture observer. The video renderer automatically returns the texture buffers, which resolves the bug. There shouldn't be any changes to the effectiveness of the test. BUG=webrtc:5982 Review-Url: https://codereview.webrtc.org/2042283004 Cr-Commit-Position: refs/heads/master@{#13085}