Add FieldTrialConfig for android scroll resampling

Bug: 999552
Change-Id: I30baf1b87c3338583e3bf2c5a41aedfed7dcd549
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1817678Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Ella Ge <eirage@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698912}

testing/variations/fieldtrial_testing_config.json

@@ -5389,6 +5389,24 @@
             ]
         }
     ],
+    "ScrollResamplingRollout": [
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "params": {
+                        "predictor": "linear_resampling"
+                    },
+                    "enable_features": [
+                        "ResamplingScrollEvents"
+                    ]
+                }
+            ]
+        }
+    ],
     "SearchEnginePromo": [
         {
             "platforms": [