Disable CameraDeviceDelegateTest.StopBeforeOpened

...due to flakiness.

Bug: 978278
Change-Id: I227c9182e4433160a8ca8788f44f2d138ea363f3
Tbr: shik@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1675904Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#671985}

media/capture/video/chromeos/camera_device_delegate_unittest.cc

@@ -514,7 +514,9 @@ TEST_F(CameraDeviceDelegateTest, AllocateCaptureAndStop) {
 // 2. Async IPC call OpenDevice() started
 // 3. StopAndDeAllocate()
 // 4. Async IPC call OpenDevice() finished
-TEST_F(CameraDeviceDelegateTest, StopBeforeOpened) {
+// Disabled due to flakiness.
+// TODO(crbug.com/978278): Fix the flakiness and re-enable this test.
+TEST_F(CameraDeviceDelegateTest, DISABLED_StopBeforeOpened) {
   auto* mock_client = ResetDeviceContext();
   mock_client->SetQuitCb(BindToCurrentLoop(base::BindOnce(
       &CameraDeviceDelegateTest::QuitRunLoop, base::Unretained(this))));