Android: enable orientation sensor device

Tested by checking the default value of "WebXR orientation sensor
device" before and after the change, and it switched from disbaled to
enabled, as expected.

Bug: 695937
Change-Id: Ib5c3e9aee51d855740db1d6cbb9267068b411d19
Reviewed-on: https://chromium-review.googlesource.com/1244878Reviewed-by: Bill Orr <billorr@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Suman Kancherla <sumankancherla@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594502}

content/public/common/content_features.cc

@@ -599,7 +599,13 @@ const base::Feature kWebXrHitTest{"WebXRHitTest",
 
 // Controls whether the orientation sensor based device is enabled.
 const base::Feature kWebXrOrientationSensorDevice{
-    "WebXROrientationSensorDevice", base::FEATURE_DISABLED_BY_DEFAULT};
+    "WebXROrientationSensorDevice",
+#if defined(OS_ANDROID)
+    base::FEATURE_ENABLED_BY_DEFAULT
+#else
+    base::FEATURE_DISABLED_BY_DEFAULT
+#endif
+};
 
 // Wipe corrupt v2 IndexedDB databases.
 const base::Feature kWipeCorruptV2IDBDatabases{