Lazy-creates BluetoothAdapter in ExtensionBluetoothEventRouter (EBEE).

chrome/browser/extensions/api/bluetooth/bluetooth_apitest.cc

 // Copyright (c) 2012 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 <string.h>
 
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/api/bluetooth/bluetooth_api.h"
 #include "chrome/browser/extensions/bluetooth_event_router.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ skipping 41 matching lines @@
 
     device1_.reset(new testing::NiceMock<MockBluetoothDevice>(
         mock_adapter_, "d1", "11:12:13:14:15:16",
         true /* paired */, false /* bonded */, true /* connected */));
     device2_.reset(new testing::NiceMock<MockBluetoothDevice>(
         mock_adapter_, "d2", "21:22:23:24:25:26",
         false /* paired */, true /* bonded */, false /* connected */));
   }
 
   virtual void CleanUpOnMainThread() OVERRIDE {
-    EXPECT_CALL(*mock_adapter_, RemoveObserver(testing::_));
+    event_router()->SetAdapterForTest(NULL);
   }
 
   void expectBooleanResult(bool expected,
                            UIThreadExtensionFunction* function) {
     scoped_ptr<base::Value> result(
         utils::RunFunctionAndReturnSingleResult(function, "[]", browser()));
     ASSERT_TRUE(result.get() != NULL);
     ASSERT_EQ(base::Value::TYPE_BOOLEAN, result->GetType());
     bool boolean_value;
     result->GetAsBoolean(&boolean_value);
@@ skipping 299 matching lines @@
   EXPECT_TRUE(listener.WaitUntilSatisfied());
 
   event_router()->AdapterPoweredChanged(mock_adapter_, true);
   event_router()->AdapterPoweredChanged(mock_adapter_, false);
   event_router()->AdapterPresentChanged(mock_adapter_, true);
   event_router()->AdapterPresentChanged(mock_adapter_, false);
   event_router()->AdapterDiscoveringChanged(mock_adapter_, true);
   event_router()->AdapterDiscoveringChanged(mock_adapter_, false);
 
   listener.Reply("go");
+  EXPECT_CALL(*mock_adapter_,
+              RemoveObserver(testing::_)).WillOnce(testing::Return());
 
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 IN_PROC_BROWSER_TEST_F(BluetoothApiTest, GetDevices) {
   ResultCatcher catcher;
   catcher.RestrictToProfile(browser()->profile());
 
   BluetoothAdapter::ConstDeviceList devices;
   devices.push_back(device1_.get());
@@ skipping 59 matching lines @@
   // Load and wait for setup
   ExtensionTestMessageListener listener("ready", true);
   ASSERT_TRUE(LoadExtension(
         test_data_dir_.AppendASCII("bluetooth/get_devices_error")));
   EXPECT_TRUE(listener.WaitUntilSatisfied());
 
   listener.Reply("go");
 
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 }