Enable PauseBrowserInitiatedHeavyTrafficForP2P by default

Bug: 913424
Change-Id: I9b1b592836d06fd20d2766f3e6cc672ad463f5e3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2071906Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Ryan Sturm <ryansturm@chromium.org>
Commit-Queue: Tarun Bansal <tbansal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#744562}

services/network/public/cpp/features.cc

@@ -83,7 +83,7 @@ const base::Feature kRequestInitiatorSiteLock{"RequestInitiatorSiteLock",
 // streaming over an active P2P connection.
 const base::Feature kPauseBrowserInitiatedHeavyTrafficForP2P{
     "PauseBrowserInitiatedHeavyTrafficForP2P",
-    base::FEATURE_DISABLED_BY_DEFAULT};
+    base::FEATURE_ENABLED_BY_DEFAULT};
 
 // When kCORBProtectionSniffing is enabled CORB sniffs additional same-origin
 // resources if they look sensitive.

testing/variations/fieldtrial_testing_config.json

@@ -3795,28 +3795,6 @@
             ]
         }
     ],
-    "PauseBrowserInitiatedHeavyTrafficForP2P": [
-        {
-            "platforms": [
-                "android",
-                "chromeos",
-                "linux",
-                "mac",
-                "windows"
-            ],
-            "experiments": [
-                {
-                    "name": "Enabled_20190712",
-                    "params": {
-                        "throttled_traffic_annotation_tags": "727528,727478"
-                    },
-                    "enable_features": [
-                        "PauseBrowserInitiatedHeavyTrafficForP2P"
-                    ]
-                }
-            ]
-        }
-    ],
     "PaymentRequestAlwaysAllowJustInTimePaymentApp": [
         {
             "platforms": [