Remove ibus dependency from PanelService.

chromeos/dbus/ibus/ibus_panel_service.cc

Index: chromeos/dbus/ibus/ibus_panel_service.cc
diff --git a/chromeos/dbus/ibus/ibus_panel_service.cc b/chromeos/dbus/ibus/ibus_panel_service.cc
index 15f7db36d7a2cc836a3155457e68b3d7c289a32c..28224c18cddbe147ae37e02ad700a7eebc1879f6 100644
--- a/chromeos/dbus/ibus/ibus_panel_service.cc
+++ b/chromeos/dbus/ibus/ibus_panel_service.cc
@@ -94,6 +94,12 @@ class IBusPanelServiceImpl : public IBusPanelService {
                    weak_ptr_factory_.GetWeakPtr()),
         base::Bind(&IBusPanelServiceImpl::OnMethodExported,
                    weak_ptr_factory_.GetWeakPtr()));
+
+    // Request well known name to ibus-daemon.
+    bus->RequestOwnership(
+        ibus::panel::kServiceName,
+        base::Bind(&IBusPanelServiceImpl::OnRequestOwnership,
+                   weak_ptr_factory_.GetWeakPtr()));
   }
 
   virtual ~IBusPanelServiceImpl() {
@@ -316,6 +322,12 @@ class IBusPanelServiceImpl : public IBusPanelService {
                               << interface_name << "." << method_name;
   }
 
+  // Called when the well knwon name is acquired.
+  void OnRequestOwnership(const std::string& name, bool obtained) {
+    LOG_IF(ERROR, !obtained) << "Failed to acquire well known name:"
+                             << name;
+  }
+
   // D-Bus bus object used for unregistering exported methods in dtor.
   dbus::Bus* bus_;