Smart revert of media: Add MediaOzonePlatform support

Smart revert version of auto revert in https://crrev.com/1127343003/
Original description -------------------------------------------------
Revert of media: Add MediaOzonePlatform support (patchset #7 id:110001 of https://codereview.chromium.org/269673005/)

Reason for revert:
Not used at the moment.

Agreed with kalyan.kondapally@intel.com,
tiago.vignatti@intel.com and
joone.hur@intel.com.

Original issue's description:
> media: Add MediaOzonePlatform support
>
> This CL adds MediaOzonePlatform, a new Ozone component for abstracting media
> and related. In particular it adds CreateVideoDecodeAccelerator method so Ozone
> implementations can use that for abstracting video decoding acceleration (i.e.
> GPU based video decoding). Eventually MediaOzonePlatform will be used as well
> for many windowing systems abstractions related to media, e.g. video encode,
> audio, etc. We will add support for these others as needed.
>
> Media platform is called and created on demand whenever a video playback is set
> to play. Different than ui::OzonePlatform methods, the one added in here is
> non-pure virtual so the implementations can decide themselves whether a video
> implementation is actually wanted, based on its hardware capabilities.
>
> This work is aimed at internal implementations like Ozone-DRI, Ozone-test but
> also for externals like Ozone-Wayland. Different targets like Chromium Browser,
> Chrome OS, ChromeCast and others can now take advantage of it.
>
> BUG=380884
> TEST=manually on Ozone-Wayland, using:
>
>  $ export GYP_DEFINES='chromeos=0 use_ozone=1 proprietary_codecs=1 ffmpeg_branding=Chrome'
>  $ ninja -j16 -C out/Release content
>
> and to run:
>
>  ~/git/chromium/src/out/Debug$ ./chrome --no-sandbox --user-data-dir=/tmp/chrome --ignore-gpu-blacklist ../../third_party/WebKit/PerformanceTests/resources/bear-1280x720.mp4  --vmodule=*/ozone/ui*=3 --v=0
>
> additionally, in Release builds you can start chrome with --disable-accelerated-video-decode to compare the results.
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=276552

TBR= rjkroege@chromium.org,dnicoara@chromium.org,spang@chromium.org,dongseong.hwang@intel.com,xhwang@chromium.org,tiago.vignatti@intel.com
BUG=380884

Review URL: https://codereview.chromium.org/1832743002

Cr-Commit-Position: refs/heads/master@{#383120}

1 files changed, 0 insertions, 15 deletions

diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.cc b/content/common/gpu/media/gpu_video_decode_accelerator.cc
index 73c703d..daa096a 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.cc
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.cc
@@ -44,8 +44,6 @@
 #include "content/common/gpu/media/vaapi_video_decode_accelerator.h"
 #include "ui/gl/gl_implementation.h"
 #endif
-#elif defined(USE_OZONE)
-#include "media/ozone/media_ozone_platform.h"
 #elif defined(OS_ANDROID)
 #include "content/common/gpu/media/android_video_decode_accelerator.h"
 #endif
@@ -367,9 +365,6 @@ bool GpuVideoDecodeAccelerator::Initialize(
 #if defined(OS_MACOSX)
     &GpuVideoDecodeAccelerator::CreateVTVDA,
 #endif
-#if !defined(OS_CHROMEOS) && defined(USE_OZONE)
-    &GpuVideoDecodeAccelerator::CreateOzoneVDA,
-#endif
 #if defined(OS_ANDROID)
     &GpuVideoDecodeAccelerator::CreateAndroidVDA,
 #endif
@@ -485,16 +480,6 @@ GpuVideoDecodeAccelerator::CreateVTVDA() {
 }
 #endif
 
-#if !defined(OS_CHROMEOS) && defined(USE_OZONE)
-scoped_ptr<media::VideoDecodeAccelerator>
-GpuVideoDecodeAccelerator::CreateOzoneVDA() {
-  media::MediaOzonePlatform* platform =
-      media::MediaOzonePlatform::GetInstance();
-  return make_scoped_ptr<media::VideoDecodeAccelerator>(
-      platform->CreateVideoDecodeAccelerator(make_context_current_));
-}
-#endif
-
 #if defined(OS_ANDROID)
 scoped_ptr<media::VideoDecodeAccelerator>
 GpuVideoDecodeAccelerator::CreateAndroidVDA() {