Use Android callback API to obtain cellular signal strength

net/android/cellular_signal_strength_unittest.cc

Index: net/android/cellular_signal_strength_unittest.cc
diff --git a/net/android/cellular_signal_strength_unittest.cc b/net/android/cellular_signal_strength_unittest.cc
index c6f879723e54870ddfe70ed3d353d568463d1178..181dea125cf8cf349914bc6363f4faa2b94b3e47 100644
--- a/net/android/cellular_signal_strength_unittest.cc
+++ b/net/android/cellular_signal_strength_unittest.cc
@@ -13,30 +13,12 @@ namespace net {
 
 namespace {
 
-TEST(CellularSignalStrengthAndroidTest, SignalStrengthTest) {
-  int signal_strength_dbm = INT32_MIN;
-  bool signal_strength_available =
-      android::cellular_signal_strength::GetSignalStrengthDbm(
-          &signal_strength_dbm);
-
-  // Signal strength is unavailable if the device does not have an active
-  // cellular connection.
-  if (!NetworkChangeNotifier::IsConnectionCellular(
-          NetworkChangeNotifier::GetConnectionType())) {
-    return;
-  }
-
-  EXPECT_TRUE(signal_strength_available);
-  // Signal strength (in dbM) should typically be between -130 and 0.
-  EXPECT_LE(-130, signal_strength_dbm);
-  EXPECT_GE(0, signal_strength_dbm);
-}
-
 TEST(CellularSignalStrengthAndroidTest, SignalStrengthLevelTest) {
   int signal_strength_level = INT32_MIN;
+  android::CellularSignalStrength cellular_signal_strength;
+
   bool signal_strength_level_available =
-      android::cellular_signal_strength::GetSignalStrengthLevel(
-          &signal_strength_level);
+      cellular_signal_strength.GetSignalStrengthLevel(&signal_strength_level);
 
   // Signal strength is unavailable if the device does not have an active
   // cellular connection.