Adding a field trial config for the context menu performance hints experiment.

Bug: 1040661
Change-Id: Id831f37c7d117ca58cb0783d6e70b04f2e530bf0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2311618Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: Josh Simmons <jds@google.com>
Cr-Commit-Position: refs/heads/master@{#790682}

testing/variations/fieldtrial_testing_config.json

@@ -2500,6 +2500,52 @@
             ]
         }
     ],
+    "EnableContextMenuPerformanceHints": [
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "ContextMenuPerformanceInfoUiEnabled",
+                    "enable_features": [
+                        "ContextMenuPerformanceInfo",
+                        "OptimizationHintsFetchingAnonymousDataConsent",
+                        "PerformanceHintsObserver"
+                    ]
+                },
+                {
+                    "name": "EnabledWithoutControl",
+                    "enable_features": [
+                        "ContextMenuPerformanceInfo",
+                        "OptimizationHintsFetchingAnonymousDataConsent",
+                        "PerformanceHintsObserver"
+                    ]
+                },
+                {
+                    "name": "ContextMenuPerformanceInfoUiDisabled",
+                    "enable_features": [
+                        "OptimizationHintsFetchingAnonymousDataConsent",
+                        "PerformanceHintsObserver"
+                    ],
+                    "disable_features": [
+                        "ContextMenuPerformanceInfo"
+                    ]
+                },
+                {
+                    "name": "ContextMenuPerformanceInfoControl",
+                    "disable_features": [
+                        "ContextMenuPerformanceInfo",
+                        "OptimizationHintsFetchingAnonymousDataConsent",
+                        "PerformanceHintsObserver"
+                    ]
+                },
+                {
+                    "name": "Default"
+                }
+            ]
+        }
+    ],
     "EnableCsrssLockdown": [
         {
             "platforms": [