Create Schemeful Same-Site fieldtrial config

Also removing obsolete cookie deprecation field trial entry as it is
default enabled on ToT.

Bug: 1030938
Change-Id: Id77635538483a0b976581b1e56af551003d81ed9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2472344
Commit-Queue: Steven Bingler <bingler@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817207}

testing/variations/fieldtrial_testing_config.json

@@ -6230,30 +6230,28 @@
             ]
         }
     ],
-    "SameSiteCookieMessages": [
+    "SaveEditedPDFForm": [
         {
             "platforms": [
-                "android",
-                "android_webview",
-                "chromeos",
-                "ios",
                 "linux",
                 "mac",
                 "windows"
             ],
             "experiments": [
                 {
-                    "name": "EnabledLaunch",
+                    "name": "Enabled",
                     "enable_features": [
-                        "CookieDeprecationMessages"
+                        "SaveEditedPDFForm"
                     ]
                 }
             ]
         }
     ],
-    "SaveEditedPDFForm": [
+    "SchemefulSameSiteAllOS": [
         {
             "platforms": [
+                "android",
+                "chromeos",
                 "linux",
                 "mac",
                 "windows"
@@ -6262,7 +6260,7 @@
                 {
                     "name": "Enabled",
                     "enable_features": [
-                        "SaveEditedPDFForm"
+                        "SchemefulSameSite"
                     ]
                 }
             ]