Linux status icon for Ubuntu Unity

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 c249cc6bda3a007b37b747a71e2fc76ef1bba82e..d2774bfc5cbe56f90425d2c58d58e5da03491c7e 100644
--- a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
+++ b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
@@ -12,7 +12,9 @@
 #include "base/logging.h"
 #include "base/nix/mime_util_xdg.h"
 #include "base/stl_util.h"
+#include "base/strings/stringprintf.h"
 #include "chrome/browser/themes/theme_properties.h"
+#include "chrome/browser/ui/libgtk2ui/app_indicator_icon.h"
 #include "chrome/browser/ui/libgtk2ui/chrome_gtk_frame.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
 #include "chrome/browser/ui/libgtk2ui/native_theme_gtk2.h"
@@ -49,6 +51,12 @@
 
 namespace {
 
+// Prefix for app indicator ids
+const char kAppIndicatorIdPrefix[] = "chrome_app_indicator_";
+
+// Number of app indicators used (used as part of app-indicator id).
+int indicators_count;
+
 // The size of the rendered toolbar image.
 const int kToolbarImageWidth = 64;
 const int kToolbarImageHeight = 128;
@@ -303,6 +311,8 @@ Gtk2UI::Gtk2UI() {
   // style-set signal handler.
   LoadGtkValues();
   SetXDGIconTheme();
+
+  indicators_count = 0;
 }
 
 Gtk2UI::~Gtk2UI() {
@@ -380,6 +390,16 @@ void Gtk2UI::SetProgressFraction(float percentage) const {
     unity::SetProgressFraction(percentage);
 }
 
+StatusIconLinux* Gtk2UI::CreateLinuxStatusIcon() const {
+  if (AppIndicatorIcon::CouldOpen()) {
+    ++indicators_count;
+    return new AppIndicatorIcon(
+        base::StringPrintf("%s%d", kAppIndicatorIdPrefix, indicators_count));
+  } else {
+    return NULL;
+  }
+}
+
 ui::SelectFileDialog* Gtk2UI::CreateSelectFileDialog(
     ui::SelectFileDialog::Listener* listener,
     ui::SelectFilePolicy* policy) const {