[aw] Fullscreen tests for non-media elements.

android_webview/test/shell/assets/full_screen_video.js

+
+function goFullscreen(id) {
+  var element = document.getElementById(id);
+  if (element.webkitRequestFullScreen) {
+    element.webkitRequestFullScreen();
+  }
+}
+
+function playVideo() {
+    document.getElementById('video').play();
+}
+
+addEventListener('DOMContentLoaded', function() {
+    document.addEventListener('webkitfullscreenchange', function() {
+        javaOnEnterFullscreen.notifyJava();
+    }, false);
+    document.getElementById('video').addEventListener('play', function() {
+        javaOnPlayObserver.notifyJava();
+    }, false);
+    document.addEventListener('webkitfullscreenerror', function() {
+        javaFullScreenErrorObserver.notifyJava();
+    }, false);
+}, false);
+