Allow passing mock FrameLoaderClient to DummyPageHolder.

Source/core/streams/ReadableStreamTest.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 "core/streams/ReadableStream.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "core/dom/DOMException.h"
+#include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/streams/ReadableStreamImpl.h"
 #include "core/streams/UnderlyingSource.h"
 #include "core/testing/DummyPageHolder.h"
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
 namespace blink {
 
 using ::testing::_;
@@ skipping 628 matching lines @@
 }
 
 TEST_F(ReadableStreamTest, ReadableArrayBufferCompileTest)
 {
     // This test tests if ReadableStreamImpl<ArrayBuffer> can be instantiated.
     new ReadableStreamImpl<ReadableStreamChunkTypeTraits<ArrayBuffer> >(scriptState()->executionContext(), m_underlyingSource);
 }
 
 } // namespace blink