Bug 1750498 - Better support orientation.lock('portrait') and orientation.lock('landscape'). r=geckoview-reviewers,owlish

Although this test is included in `testing/web-platform/tests/screen-orientation/lock-basic.html`,
it is still timed out until fixing bug 1750147.

Differential Revision: https://phabricator.services.mozilla.com/D136118

mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoRuntime.java

@@ -873,6 +873,10 @@ public final class GeckoRuntime implements Parcelable {
       return ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
     } else if (geckoOrientation == ScreenOrientation.DEFAULT.value) {
       return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
+    } else if (geckoOrientation == ScreenOrientation.PORTRAIT.value) {
+      return ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT;
+    } else if (geckoOrientation == ScreenOrientation.LANDSCAPE.value) {
+      return ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE;
     } else if (geckoOrientation == ScreenOrientation.ANY.value) {
       return ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR;
     }

testing/web-platform/meta/screen-orientation/lock-sandboxed-iframe.html.ini

@@ -1,5 +1,6 @@
 [lock-sandboxed-iframe.html]
   prefs: [dom.screenorientation.allow-lock:true]
+  expected: [OK, ERROR] # Bug 1750673
   [Test without 'allow-orientation-lock' sandboxing directive]
     expected:
       if (os == "android"): PASS