Kiosk Mode implementation

chrome/browser/gtk/browser_window_gtk.cc

Index: chrome/browser/gtk/browser_window_gtk.cc
diff --git a/chrome/browser/gtk/browser_window_gtk.cc b/chrome/browser/gtk/browser_window_gtk.cc
index 63fe8806c1aeb0066dbab842137f63c27a6572e7..87bf9c27d225d8d6d2c026766f15c1b3d8ed604f 100644
--- a/chrome/browser/gtk/browser_window_gtk.cc
+++ b/chrome/browser/gtk/browser_window_gtk.cc
@@ -1018,6 +1018,11 @@ bool BrowserWindowGtk::IsFullscreen() const {
   return (state_ & GDK_WINDOW_STATE_FULLSCREEN);
 }
 
+bool BrowserWindowGtk::IsFullscreenBubbleVisible() const {
+  // There is no fullscreen bubble for Linux.
+  return false;
+}
+
 LocationBar* BrowserWindowGtk::GetLocationBar() const {
   return toolbar_->GetLocationBar();
 }