Revert of Linux Video Capture: Add V4L2VideoCaptureDelegate{Single,Multi}Plane.

Revert of Linux Video Capture: Add V4L2VideoCaptureDelegate{Single,Multi}Plane. (patchset #11 id:630001 of https://codereview.chromium.org/967793002/)

Reason for revert:
Seems to breaks bots that use real cameras:
https://build.chromium.org/p/chromium.webrtc/builders/Linux%20Tester/builds/136

WebRtcPerfBrowserTest.MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetrics
    WebRtcPerfBrowserTest.MANUAL_RunsOneWayCall60SecsAndLogsInternalMetrics

Original issue's description:
> Linux Video Capture: Add V4L2VideoCaptureDelegate{Single,Multi}Plane.
>
> This CL adds support for V4L2 MPLANE Capture Api.
> Only supported format is YUV420M triplanar.
>
> A new method is added to VideoCaptureDeviceClient,
> namely OnIncomingCapturedYuvData(...), which forces
> adding MOCKing here and there, and its own
> implementation.
>
> V4L2 MMAP API works via user mmap()ing a number of
> buffer allocated by V4L2 capture device. If those
> buffers are not correctly munmap()ed, bad things (c)
> happen. In light of this, the manual buffer lifetime
> management is changed to automatic one. Construction
> (mmap()ing) of those called BufferTracker is
> planarity specific (i.e. there's one such ctor in
> each of BufferTracker{S,M}Plane), while the dtor
> is generic and the same.
>
> ToT class diagram:
>      +------------------------------------+
>      | VideoCaptureDeviceLinux            |
>      |            +----------------------+|
>      | <<ref>> -->| V4L2CaptureDelegate  ||
>      |   cnt      |  (struct Buffer)     ||
>      |            +----------------------+|
>      +------------------------------------+
>
> This CL class scheme:
>
>  +--------------------------+
>  | VideoCaptureDeviceLinux  |
>  |                          |
>  | <<ref_cnt>> ---+         |
>  +----------------|---------+
>  +----------------v-----------+ v4l2_capture_delegate.{cc,h}
>  | +-----------------------+  |
>  | |V4L2CaptureDelegate    |  |
>  | |  (class BufferTracker)|  |
>  | +-----------------------+  |
>  +-------^------------------^-+
>          |                  |
>     +----|-------+ +--------|--+ v4l2_capture_delegate_multi_plane.{cc,h}
>     | SPlane     | | MPlane    |
>     | (BTSplane) | | (BTMPlane)|
>     |            | +-----------+
>     +------------+ v4l2_capture_delegate_single_plane.{cc,h}
>
> - VCDevice works on the premise that its calls into
>  VCDevice::Client::OnIncomingWhatever() are synchronous.
>  That assumption is respected here.
>
> - A bit of cleanup is done in OnIncomingCaptureData(),
>  in what regards rotation/crop/odd sizes. A unit test
>  is subsequently added.
>
> - VideoCaptureDeviceFactory labels the devices as
>  Single or Multi Planar. That labeling capture_api_type()
>  needs to ripple through a bunch of files, causing some
>  otherwise uninteresting changes in the patchsets.
>
> BUG=441836
>
> TEST= Compile and insmod vivid.ko into a kernel,
> with options for supporting MPLANE api (multiplanar=2)
> then capture using patched Chromium. Current vivid
> does _not_ support any common Mplane format, needs
> a patch:
>
> https://github.com/miguelao/linux/tree/adding_yu12_yv12_nv12_nv21___mplane_formats___with_mods_for_kernel_3_13
>
> that needs to be compiled against ubuntu sources 3.13 etc.
>
> For even better coverage, use a normal WebCam and
> navigate to http://goo.gl/fUcIiP, then open both
> the MPlane camera mentioned in the previous paragraph
> and the "normal" webcam (this is,partially, how I
> try it).
>
> Committed: https://crrev.com/d3d37d0f3493dd28cd687fe9285b0aac81a61dae
> Cr-Commit-Position: refs/heads/master@{#321612}

TBR=emircan@chromium.org,posciak@chromium.org,magjed@chromium.org,dalecurtis@chromium.org,mcasas@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=441836
Committed: https://crrev.com/ec793ac608a5c09baae573d9a488d466181f6531
Cr-Commit-Position: refs/heads/master@{#321746}

[perkj_chrome, 2015-03-23 08:53:03]

Created Revert of Linux Video Capture: Add
V4L2VideoCaptureDelegate{Single,Multi}Plane.

[commit-bot: I haz the power, 2015-03-23 08:53:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1031583002/1

[commit-bot: I haz the power, 2015-03-23 08:54:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-23 08:55:27]

Patchset 1 (id:??) landed as
https://crrev.com/ec793ac608a5c09baae573d9a488d466181f6531
Cr-Commit-Position: refs/heads/master@{#321746}

[perkj_chrome, 2015-03-23 08:59:43]

On 2015/03/23 08:54:14, I haz the power (commit-bot) wrote:
> Committed patchset #1 (id:1)

Sorry, the broken tests use file video capture of course, not a real camera.
switches::kUseFileForFakeVideoCapture.