fix: Ensures iOS can use native fullscreen (#8071)

src/js/tech/html5.js

@@ -666,20 +666,14 @@ class Html5 extends Tech {
   }
 
   /**
-   * Check if fullscreen is supported on the current playback device.
+   * Check if fullscreen is supported on the video el.
    *
    * @return {boolean}
    *         - True if fullscreen is supported.
    *         - False if fullscreen is not supported.
    */
   supportsFullScreen() {
-    if (typeof this.el_.webkitEnterFullScreen === 'function') {
-      // Still needed?
-      if (browser.IS_ANDROID) {
-        return true;
-      }
-    }
-    return false;
+    return typeof this.el_.webkitEnterFullScreen === 'function';
   }
 
   /**

test/unit/tech/html5.test.js

@@ -893,3 +893,15 @@ QUnit.test('featuresVideoFrameCallback is false for Safari DRM', function(assert
     assert.ok(true, 'skipped because webkitKeys not writable');
   }
 });
+
+QUnit.test('supportsFullScreen is always with `webkitEnterFullScreen`', function(assert) {
+  const oldEl = tech.el_;
+
+  tech.el_ = {
+    webkitEnterFullScreen: () => {}
+  };
+
+  assert.ok(tech.supportsFullScreen(), 'supportsFullScreen() true with webkitEnterFullScreen');
+
+  tech.el_ = oldEl;
+});