Update fieldtrial config for D3D11VideoDecoder

Change-Id: I263abe356ff2227624658beda01b794dc0892e25
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1917978
Auto-Submit: Frank Liberato <liberato@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#716424}

testing/variations/fieldtrial_testing_config.json

@@ -1777,12 +1777,17 @@
             ],
             "experiments": [
                 {
-                    "name": "V2EnabledWithCopyingAndLimited",
+                    "name": "V3EnabledLimited",
                     "enable_features": [
                         "D3D11PrintCodecOnCrash",
                         "D3D11VideoDecoder",
+                        "D3D11VideoDecoderAllowOverlay",
                         "D3D11VideoDecoderCopyPictures",
                         "D3D11VideoDecoderLimitTo11_0"
+                    ],
+                    "disable_features": [
+                        "D3D11VideoDecoderAlwaysCopy",
+                        "D3D11VideoDecoderSkipMultithreaded"
                     ]
                 }
             ]