Replace a notimplemented with a bug about full screen mode.

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 038bf2e053747ec640af2e0ff055dfcb925f174d..509bead42746cdb10ceeaeb32a8c8bde3e1d2497 100644
--- a/chrome/browser/gtk/browser_window_gtk.cc
+++ b/chrome/browser/gtk/browser_window_gtk.cc
@@ -257,11 +257,13 @@ bool BrowserWindowGtk::IsMaximized() const {
 }
 
 void BrowserWindowGtk::SetFullscreen(bool fullscreen) {
-  NOTIMPLEMENTED();
+  // Need to implement full screen mode.
+  // http://code.google.com/p/chromium/issues/detail?id=8405
 }
 
 bool BrowserWindowGtk::IsFullscreen() const {
-  NOTIMPLEMENTED();
+  // Need to implement full screen mode.
+  // http://code.google.com/p/chromium/issues/detail?id=8405
   return false;
 }