Revert of Fall back to X11 system tray icons if libappindicator is not available

chrome/browser/ui/libgtk2ui/gtk2_ui.cc

Index: chrome/browser/ui/libgtk2ui/gtk2_ui.cc
diff --git a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
index eace24d2c78206ccf73ee86f66117b8b7a0f374c..bb92ddae9cc074a1836ce9ce8d7e2f05ee8113d1 100644
--- a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
+++ b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
@@ -21,7 +21,6 @@
 #include "chrome/browser/ui/libgtk2ui/gtk2_event_loop.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_key_bindings_handler.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_signal_registrar.h"
-#include "chrome/browser/ui/libgtk2ui/gtk2_status_icon.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
 #include "chrome/browser/ui/libgtk2ui/native_theme_gtk2.h"
 #include "chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h"
@@ -505,7 +504,7 @@
 }
 
 bool Gtk2UI::IsStatusIconSupported() const {
-  return true;
+  return AppIndicatorIcon::CouldOpen();
 }
 
 scoped_ptr<views::StatusIconLinux> Gtk2UI::CreateLinuxStatusIcon(
@@ -518,8 +517,7 @@
         image,
         tool_tip));
   } else {
-    return scoped_ptr<views::StatusIconLinux>(new Gtk2StatusIcon(
-        image, tool_tip));
+    return scoped_ptr<views::StatusIconLinux>();
   }
 }