Enable terminal system app by default

Change-Id: I4d37b89eba0b26ac1e801e42edfda08cfb739629
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2076638
Auto-Submit: Joel Hockey <joelhockey@chromium.org>
Reviewed-by: Ben Wells <benwells@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745377}

chrome/common/chrome_features.cc

@@ -196,7 +196,7 @@ const base::Feature kPrintServerUi{"PrintServerUi",
 // OS_CHROMEOS, but this flag must be defined for all platforms since
 // it is required for SystemWebApp tests.
 const base::Feature kTerminalSystemApp{"TerminalSystemApp",
-                                       base::FEATURE_DISABLED_BY_DEFAULT};
+                                       base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enable splits in the Terminal System App.
 const base::Feature kTerminalSystemAppSplits{"TerminalSystemAppSplits",