add ParallelDownloadWithQUICAndHTTP2 to fieldtrial_testing_config

BUG=971366

Change-Id: Ic4f8880eec0a793c2e8a8585f3bf4d3bfda907a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1912631Reviewed-by: Nik Bhagat <nikunjb@chromium.org>
Commit-Queue: Min Qin <qinmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714745}

testing/variations/fieldtrial_testing_config.json

@@ -4289,6 +4289,27 @@
             ]
         }
     ],
+    "ParallelDownloadWithQUICAndHTTP2": [
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "EnableHTTP2",
+                    "enable_features": [
+                        "UseParallelRequestsForHTTP2"
+                    ]
+                },
+                {
+                    "name": "EnableQuic",
+                    "enable_features": [
+                        "UseParallelRequestsForQUIC"
+                    ]
+                }
+            ]
+        }
+    ],
     "ParallelDownloading": [
         {
             "platforms": [