Windowed mode mouse lock addded to fullscreen controller.

chrome/browser/ui/gtk/browser_window_gtk.cc

Index: chrome/browser/ui/gtk/browser_window_gtk.cc
diff --git a/chrome/browser/ui/gtk/browser_window_gtk.cc b/chrome/browser/ui/gtk/browser_window_gtk.cc
index c30674c868c2acf0b20a20f225959c9be4dc9dde..d8821789d7bb5701716ddf001955703c5a5ba48e 100644
--- a/chrome/browser/ui/gtk/browser_window_gtk.cc
+++ b/chrome/browser/ui/gtk/browser_window_gtk.cc
@@ -922,10 +922,19 @@ void BrowserWindowGtk::EnterFullscreen(
 }
 
 void BrowserWindowGtk::UpdateFullscreenExitBubbleContent(
-      const GURL& url,
+     const GURL& url,
       FullscreenExitBubbleType bubble_type) {
-  if (fullscreen_exit_bubble_.get())
-    fullscreen_exit_bubble_->UpdateContent(url, bubble_type);
+  if (bubble_type == FEB_TYPE_NONE) {
+   fullscreen_exit_bubble_.reset();
+  } else if (fullscreen_exit_bubble_.get()) {
+   fullscreen_exit_bubble_->UpdateContent(url, bubble_type);
+  } else {
+    fullscreen_exit_bubble_.reset(new FullscreenExitBubbleGtk(
+        GTK_FLOATING_CONTAINER(render_area_floating_container_),
+        browser(),
+        url,
+        bubble_type));
+  }
 }
 
 void BrowserWindowGtk::ExitFullscreen() {