[Extensions] DCHECK that ExtensionFunctions respond (and only once)

chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
 #include "chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_api.h"
@@ skipping 352 matching lines @@
       .WillOnce(Return(device0_.get()));
   EXPECT_CALL(*device0_, GetGattService(kTestServiceId0))
       .Times(1)
       .WillOnce(Return(service0_.get()));
 
   event_router()->GattServiceAdded(
       mock_adapter_, device0_.get(), service0_.get());
   event_router()->GattDiscoveryCompleteForService(mock_adapter_,
                                                   service0_.get());
 
-  ExtensionTestMessageListener get_service_success_listener(true);
+  ExtensionTestMessageListener get_service_success_listener(false);
   EXPECT_TRUE(get_service_success_listener.WaitUntilSatisfied());
   ASSERT_EQ("getServiceSuccess", get_service_success_listener.message())
       << get_service_success_listener.message();
   testing::Mock::VerifyAndClearExpectations(mock_adapter_);
   testing::Mock::VerifyAndClearExpectations(device0_.get());
 
   // 2. getService fail.
   EXPECT_CALL(*mock_adapter_, GetDevice(_)).Times(0);
   EXPECT_CALL(*device0_, GetGattService(kTestServiceId0)).Times(0);
 
@@ skipping 843 matching lines @@
   testing::NiceMock<MockBluetoothGattConnection>* conn =
       new testing::NiceMock<MockBluetoothGattConnection>(mock_adapter_,
                                                          kTestLeDeviceAddress0);
   std::unique_ptr<BluetoothGattConnection> conn_ptr(conn);
   EXPECT_CALL(*conn, Disconnect()).Times(1);
 
   EXPECT_CALL(*device0_, CreateGattConnection(_, _))
       .Times(1)
       .WillOnce(SaveArg<0>(&connect_callback));
 
-  ExtensionTestMessageListener listener(true);
+  ExtensionTestMessageListener listener(false);
   ASSERT_TRUE(LoadExtension(test_data_dir_.AppendASCII(
       "bluetooth_low_energy/connect_in_progress")));
 
   EXPECT_TRUE(listener.WaitUntilSatisfied());
   ASSERT_EQ("After 2nd connect fails due to 1st connect being in progress.",
             listener.message())
       << listener.message();
   listener.Reset();
 
   connect_callback.Run(std::move(conn_ptr));
@@ skipping 110 matching lines @@
   EXPECT_TRUE(listener.WaitUntilSatisfied());
 
   listener.Reply("go");
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 
   event_router()->GattServiceRemoved(mock_adapter_, device0_.get(),
                                      service0_.get());
 }
 
 }  // namespace