Disable flaky capture unittests on Linux.

The tests went flaky when we replaced the bot and get VIDIOC_STREAMON
errors about 25% of the builds. I have no idea to fix that; we tried
replacing the webcam and moving it around in the USB ports and that
didn't help. See http://crbug.com/828568 for discussion.

Bug: chromium:831514
Change-Id: Ic55c09a16a22dd0402c3360b710e310c733ec5f9
Reviewed-on: https://chromium-review.googlesource.com/1016301Reviewed-by: Christian Fremerey <chfremer@chromium.org>
Commit-Queue: Christian Fremerey <chfremer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#552165}

media/capture/video/video_capture_device_unittest.cc

@@ -62,30 +62,38 @@
 #define MAYBE_CaptureMjpeg DISABLED_CaptureMjpeg
 #define MAYBE_TakePhoto TakePhoto
 #define MAYBE_GetPhotoState GetPhotoState
+#define MAYBE_CaptureWithSize CaptureWithSize
 #elif defined(OS_WIN)
 #define MAYBE_AllocateBadSize AllocateBadSize
 #define MAYBE_CaptureMjpeg CaptureMjpeg
 #define MAYBE_TakePhoto TakePhoto
 #define MAYBE_GetPhotoState GetPhotoState
+#define MAYBE_CaptureWithSize CaptureWithSize
 #elif defined(OS_ANDROID)
 #define MAYBE_AllocateBadSize AllocateBadSize
 #define MAYBE_CaptureMjpeg CaptureMjpeg
 #define MAYBE_TakePhoto TakePhoto
 #define MAYBE_GetPhotoState GetPhotoState
+#define MAYBE_CaptureWithSize CaptureWithSize
 #elif defined(OS_LINUX)
+// All tests are flaky on Linux: https://crbug.com/831514. Note: the stuff in
+// the next comment is a separate issue.
+
 // AllocateBadSize will hang when a real camera is attached and if more than one
 // test is trying to use the camera (even across processes). Do NOT renable
 // this test without fixing the many bugs associated with it:
 // http://crbug.com/94134 http://crbug.com/137260 http://crbug.com/417824
 #define MAYBE_AllocateBadSize DISABLED_AllocateBadSize
-#define MAYBE_CaptureMjpeg CaptureMjpeg
-#define MAYBE_TakePhoto TakePhoto
-#define MAYBE_GetPhotoState GetPhotoState
+#define MAYBE_CaptureMjpeg DISABLED_CaptureMjpeg
+#define MAYBE_TakePhoto DISABLED_TakePhoto
+#define MAYBE_GetPhotoState DISABLED_GetPhotoState
+#define MAYBE_CaptureWithSize DISABLED_CaptureWithSize
 #else
 #define MAYBE_AllocateBadSize AllocateBadSize
 #define MAYBE_CaptureMjpeg CaptureMjpeg
 #define MAYBE_TakePhoto DISABLED_TakePhoto
 #define MAYBE_GetPhotoState DISABLED_GetPhotoState
+#define MAYBE_CaptureWithSize CaptureWithSize
 #endif
 
 // Wrap the TEST_P macro into another one to allow to preprocess |test_name|
@@ -474,7 +482,7 @@ TEST(VideoCaptureDeviceDescriptor, RemoveTrailingWhitespaceFromDisplayName) {
 }
 
 // Allocates the first enumerated device, and expects a frame.
-WRAPPED_TEST_P(VideoCaptureDeviceTest, CaptureWithSize) {
+WRAPPED_TEST_P(VideoCaptureDeviceTest, MAYBE_CaptureWithSize) {
   const auto descriptor = FindUsableDeviceDescriptor();
   if (!descriptor)
     return;