Enable FasterLocationReload feature by default

As a third step of experiment-controlled rollouts, enable
FasterLocationReload feature by default for trunk.

BUG=591245

Review-Url: https://codereview.chromium.org/2747413002
Cr-Commit-Position: refs/heads/master@{#457346}

content/public/common/content_features.cc

@@ -57,7 +57,7 @@ const base::Feature kExpensiveBackgroundTimerThrottling{
 // Enables faster location.reload() to use a reload mode that revalidates only
 // main resource forcibly. https://crbug.com/670237.
 const base::Feature kFasterLocationReload{"FasterLocationReload",
-                                          base::FEATURE_DISABLED_BY_DEFAULT};
+                                          base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables the Feature Policy framework for granting and removing access to
 // other features through HTTP headers.