Revert of Delete video_render module. (patchset #12 id:220001 of https://codereview.webrtc.org/1912143002/ )

Reason for revert:
This breaks every buildbot in chromium.webrtc.fyi and I don't see any roll in progress to address this (and I don't see how that would be possible either).
Usage in Chrome: https://code.google.com/p/chromium/codesearch#search/&q=modules.gyp%3Avideo_render&sq=package:chromium&type=cs

Example failures:
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/5420
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Win%20Builder/builds/4526

I think it's fine to delete our video_render_module_internal_impl target and those files, but video_render target needs to remain.

Original issue's description:
> Delete video_render module.
>
> BUG=webrtc:5817
>
> Committed: https://crrev.com/97cfd1ec05d07ef233356e57f7aa4b028b74ffba
> Cr-Commit-Position: refs/heads/master@{#12526}

TBR=mflodman@webrtc.org,pbos@webrtc.org,nisse@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5817

Review-Url: https://codereview.webrtc.org/1923613003
Cr-Commit-Position: refs/heads/master@{#12534}

webrtc/modules/modules_java.gyp

@@ -18,5 +18,14 @@
 
       'includes': [ '../../build/java.gypi' ],
     }, # audio_device_module_java
+    {
+      'target_name': 'video_render_module_java',
+      'type': 'none',
+      'variables': {
+        'java_in_dir': 'video_render/android/java',
+        'additional_src_dirs': [ '../base/java/src', ],
+      },
+      'includes': [ '../../build/java.gypi' ],
+    }, # video_render_module_java
   ],
 }