[omnibox] [drive|doc] drive_fieldtrial_testing_config.json study name.

Moves the test config for the feature OmniboxDocumentProvider from
the OmniboxBundledExperimentV1 study to a new
OmniboxDocumentProviderNonDogfoodExperiments study.

This should address the corresponding finch warnings, for this study,
but not the OmniboxDocumentProviderDogfood study unfortunately.

Change-Id: I5a9275841f0108251ba7ae909efa09496201e105
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2406149Reviewed-by: Tommy Li <tommycli@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807026}

testing/variations/fieldtrial_testing_config.json

@@ -4720,7 +4720,6 @@
                     },
                     "enable_features": [
                         "OmniboxDisplayTitleForCurrentUrl",
-                        "OmniboxDocumentProvider",
                         "OmniboxMaxURLMatches",
                         "OmniboxMaxZeroSuggestMatches",
                         "OmniboxReactiveZeroSuggestionsOnNTPOmnibox",
@@ -4776,6 +4775,24 @@
             ]
         }
     ],
+    "OmniboxDocumentProviderNonDogfoodExperiments": [
+        {
+            "platforms": [
+                "chromeos",
+                "linux",
+                "mac",
+                "windows"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled ",
+                    "enable_features": [
+                        "OmniboxDocumentProvider"
+                    ]
+                }
+            ]
+        }
+    ],
     "OmniboxEnableClipboardProviderImageSuggestions": [
         {
             "platforms": [