location: Enable the Core Location backend by default

The change enables the Core Location backend for the Geolocation API by
default on macOS.

Bug: 1051591
Change-Id: I24f64e98beede879e0237fc73b3dc884f121d131
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2411302
Commit-Queue: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Ovidio de Jesús Ruiz-Henríquez <odejesush@chromium.org>
Cr-Commit-Position: refs/heads/master@{#808027}

services/device/public/cpp/device_features.cc

@@ -21,6 +21,6 @@ const base::Feature kWinrtGeolocationImplementation{
 // Enables usage of the CoreLocation API for LocationProvider instead of
 // NetworkLocationProvider for macOS.
 const base::Feature kMacCoreLocationImplementation{
-    "kMacCoreLocationImplementation", base::FEATURE_DISABLED_BY_DEFAULT};
+    "kMacCoreLocationImplementation", base::FEATURE_ENABLED_BY_DEFAULT};
 
 }  // namespace features