Clean Up: Remove ibus namespace.

chromeos/dbus/ibus/ibus_text_unittest.cc

Index: chromeos/dbus/ibus/ibus_text_unittest.cc
diff --git a/chromeos/dbus/ibus/ibus_text_unittest.cc b/chromeos/dbus/ibus/ibus_text_unittest.cc
index b829123d6093af76462071631e88e8dda405ce65..1757a2ca9ca7847f9eddf1640bdf51dd752f64f2 100644
--- a/chromeos/dbus/ibus/ibus_text_unittest.cc
+++ b/chromeos/dbus/ibus/ibus_text_unittest.cc
@@ -16,8 +16,6 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
-// TODO(nona): Remove ibus namespace after complete libibus removal.
-namespace ibus {
 
 TEST(IBusTextTest, WriteReadTest) {
   const char kSampleText[] = "Sample Text";
@@ -99,5 +97,4 @@ TEST(IBusTextTest, PopStringFromIBusTextTest) {
   EXPECT_EQ(kSampleText, result);
 }
 
-}  // namespace ibus
 }  // namespace chromeos