Profiles: Fixed crash when avatar bubble is launched using ctrl+shift+m key...

Profiles: Fixed crash when avatar bubble is launched using ctrl+shift+m key press when there is only one default profile. Incorporated necessary condition check before launching avatar bubble.

BUG=105700
TEST=None


Review URL: http://codereview.chromium.org/8664028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112864 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/gtk/avatar_menu_button_gtk.cc

@@ -58,7 +58,9 @@ void AvatarMenuButtonGtk::OnSizeAllocate(GtkWidget* widget,
 }
 
 void AvatarMenuButtonGtk::ShowAvatarBubble() {
-  new AvatarMenuBubbleGtk(browser_, widget_.get(), arrow_location_, NULL);
+  // Only show the avatar bubble if the avatar button is in the title bar.
+  if (gtk_widget_get_parent_window(widget_.get()))
+    new AvatarMenuBubbleGtk(browser_, widget_.get(), arrow_location_, NULL);
 }
 
 void AvatarMenuButtonGtk::UpdateButtonIcon() {