Move IsStringASCII/UTF8 to base namespace.

jingle/notifier/listener/notification_defines_unittest.cc

Index: jingle/notifier/listener/notification_defines_unittest.cc
diff --git a/jingle/notifier/listener/notification_defines_unittest.cc b/jingle/notifier/listener/notification_defines_unittest.cc
index 389f3ccdf7a66b60b6a102a8c5ecd15f457f7c43..d78323930efccafa64bcc96e977e39fac3df5fd3 100644
--- a/jingle/notifier/listener/notification_defines_unittest.cc
+++ b/jingle/notifier/listener/notification_defines_unittest.cc
@@ -17,7 +17,7 @@ class NotificationTest : public testing::Test {};
 // Converting it to string shouldn't cause a crash.
 TEST_F(NotificationTest, BinaryData) {
   const char kNonUtf8Data[] = { '\xff', '\0' };
-  EXPECT_FALSE(IsStringUTF8(kNonUtf8Data));
+  EXPECT_FALSE(base::IsStringUTF8(kNonUtf8Data));
   Notification notification;
   notification.data = kNonUtf8Data;
   EXPECT_EQ("{ channel: \"\", data: \"\\u00FF\" }", notification.ToString());