Oilpan: fix reported unit test leaks.

Source/modules/websockets/NewWebSocketChannelImplTest.cpp

 // 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 "config.h"
 #include "modules/websockets/WebSocketChannel.h"
 
 #include "core/fileapi/Blob.h"
 #include "core/frame/ConsoleTypes.h"
 #include "core/testing/DummyPageHolder.h"
@@ skipping 84 matching lines @@
         , m_channel(NewWebSocketChannelImpl::create(&m_pageHolder->document(), m_channelClient.get(), String(), 0, handle()))
         , m_sumOfConsumedBufferedAmount(0)
     {
         ON_CALL(*channelClient(), didConsumeBufferedAmount(_)).WillByDefault(Invoke(this, &NewWebSocketChannelImplTest::didConsumeBufferedAmount));
     }
 
     ~NewWebSocketChannelImplTest()
     {
 #if ENABLE(OILPAN)
         channel()->disconnect();
+        m_channelClient.clear();
+        m_channel.clear();
+        Heap::collectAllGarbage();
 #endif
     }
 
     MockWebSocketChannelClient* channelClient()
     {
         return m_channelClient.get();
     }
 
     WebSocketChannel* channel()
     {
@@ skipping 617 matching lines @@
         EXPECT_CALL(*channelClient(), didReceiveMessageError());
         EXPECT_CALL(*channelClient(), didClose(WebSocketChannelClient::ClosingHandshakeIncomplete, WebSocketChannel::CloseEventCodeAbnormalClosure, String()));
     }
 
     channel()->fail("fail message from WebSocket", ErrorMessageLevel, "sourceURL", 1234);
 }
 
 } // namespace
 
 } // namespace WebCore