onToggleFullscreenMode   51 chrome/android/java/src/org/chromium/chrome/browser/EmptyTabObserver.java     public void onToggleFullscreenMode(Tab tab, boolean enable) { }
onToggleFullscreenMode  108 chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java     void onToggleFullscreenMode(Tab tab, boolean enable);