bluetooth: Return false for IsPresent only when bluetooth is not supported

device/bluetooth/bluetooth_adapter_unittest.cc

Index: device/bluetooth/bluetooth_adapter_unittest.cc
diff --git a/device/bluetooth/bluetooth_adapter_unittest.cc b/device/bluetooth/bluetooth_adapter_unittest.cc
index ffd8467e19a0ed2a9a6ebe29ce92cbd8d482229b..79a3bbe20c3ed779e248214c2a591fb96fb6fe35 100644
--- a/device/bluetooth/bluetooth_adapter_unittest.cc
+++ b/device/bluetooth/bluetooth_adapter_unittest.cc
@@ -430,8 +430,16 @@ TEST_F(BluetoothTest, ConstructDefaultAdapter) {
     LOG(WARNING) << "Bluetooth adapter not present; skipping unit test.";
     return;
   }
-  EXPECT_GT(adapter_->GetAddress().length(), 0u);
-  EXPECT_GT(adapter_->GetName().length(), 0u);
+
+  bool expected = false;
+// MacOS returns empty for name and address if the adapter is off.
+#if defined(OS_MACOSX)
+  expected = !adapter_->IsPowered();
+#endif  // defined(OS_MACOSX)
+
+  EXPECT_EQ(expected, adapter_->GetAddress().empty());
+  EXPECT_EQ(expected, adapter_->GetName().empty());
+
   EXPECT_TRUE(adapter_->IsPresent());
   // Don't know on test machines if adapter will be powered or not, but
   // the call should be safe to make and consistent.