Add WiFi SSID getter to NetworkChangeNotifier.

net/base/address_tracker_linux_unittest.cc

Index: net/base/address_tracker_linux_unittest.cc
diff --git a/net/base/address_tracker_linux_unittest.cc b/net/base/address_tracker_linux_unittest.cc
index 1eba58fbe6af35aa9319129bfba5ac214be92baa..9b87434e73efa932d08eefd2eaa1cb5b30182b3c 100644
--- a/net/base/address_tracker_linux_unittest.cc
+++ b/net/base/address_tracker_linux_unittest.cc
@@ -21,6 +21,8 @@ namespace internal {
 namespace {
 
 const int kTestInterfaceTun = 123;
+const char kWiFiSSID[] = "TestWiFi";
+const char kInterfaceWithNoSSID[] = "wlan999";
 
 char* TestGetInterfaceName(int interface_index, char* buf) {
   if (interface_index == kTestInterfaceTun)
@@ -28,6 +30,10 @@ char* TestGetInterfaceName(int interface_index, char* buf) {
   return strncpy(buf, "eth0", IFNAMSIZ);
 }
 
+std::string TestGetInterfaceSSID(const std::string& ifname) {
+  return (ifname == kInterfaceWithNoSSID) ? "" : kWiFiSSID;
+}
+
 }  // namespace
 
 typedef std::vector<char> Buffer;
@@ -552,6 +558,47 @@ TEST_F(AddressTrackerLinuxTest, NonTrackingModeInit) {
   tracker.Init();
 }
 
+TEST_F(AddressTrackerLinuxTest, ConnectionSSIDFromInterfaceList) {
+  NetworkInterfaceList list;
+  EXPECT_EQ(std::string(), AddressTrackerLinux::ConnectionSSIDFromInterfaceList(
+                               list, TestGetInterfaceSSID));
+
+  NetworkInterface interface1;
+  interface1.name = "wlan0";
+  interface1.type = NetworkChangeNotifier::CONNECTION_WIFI;
+  list.push_back(interface1);
+  ASSERT_EQ(1u, list.size());
+  EXPECT_EQ(std::string(kWiFiSSID),
+            AddressTrackerLinux::ConnectionSSIDFromInterfaceList(
+                list, TestGetInterfaceSSID));
+
+  NetworkInterface interface2;
+  interface2.name = "wlan1";
+  interface2.type = NetworkChangeNotifier::CONNECTION_WIFI;
+  list.push_back(interface2);
+  ASSERT_EQ(2u, list.size());
+  EXPECT_EQ(std::string(kWiFiSSID),
+            AddressTrackerLinux::ConnectionSSIDFromInterfaceList(
+                list, TestGetInterfaceSSID));
+
+  NetworkInterface interface3;
+  interface3.name = kInterfaceWithNoSSID;
+  interface3.type = NetworkChangeNotifier::CONNECTION_WIFI;
+  list.push_back(interface3);
+  ASSERT_EQ(3u, list.size());
+  EXPECT_EQ(std::string(), AddressTrackerLinux::ConnectionSSIDFromInterfaceList(
+                               list, TestGetInterfaceSSID));
+
+  list.pop_back();
+  NetworkInterface interface4;
+  interface4.name = "eth0";
+  interface4.type = NetworkChangeNotifier::CONNECTION_ETHERNET;
+  list.push_back(interface4);
+  ASSERT_EQ(3u, list.size());
+  EXPECT_EQ(std::string(), AddressTrackerLinux::ConnectionSSIDFromInterfaceList(
+                               list, TestGetInterfaceSSID));
+}
+
 }  // namespace
 
 }  // namespace internal