Remove unnecessary ExceptionCode.h inclusion

third_party/WebKit/Source/modules/mediastream/RTCDataChannelTest.cpp

 // Copyright 2015 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 "modules/mediastream/RTCDataChannel.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/dom/DOMException.h"
-#include "core/dom/ExceptionCode.h"
 #include "core/events/Event.h"
 #include "platform/heap/Heap.h"
 #include "public/platform/WebRTCDataChannelHandler.h"
 #include "public/platform/WebVector.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 namespace {
@@ skipping 115 matching lines @@
     channel->setBufferedAmountLowThreshold(97U);
     EXPECT_EQ(4U, channel->m_scheduledEvents.size()); // No new events.
 
     handler->drainBuffer(1);
     EXPECT_EQ(97U, channel->bufferedAmount());
     EXPECT_EQ(5U, channel->m_scheduledEvents.size()); // New event.
     EXPECT_EQ("bufferedamountlow", std::string(channel->m_scheduledEvents.last()->type().utf8().data()));
 }
 
 } // namespace blink