Stop FetchDataLoaderTest from using [Web|Fetch]DataConsumerHandle.

third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.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/fetch/BytesConsumerTestUtil.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/TaskRunnerHelper.h"
 #include "platform/testing/UnitTestHelpers.h"
 #include "public/platform/WebTaskRunner.h"
 #include "wtf/Assertions.h"
 #include "wtf/Functional.h"
 
 namespace blink {
 
 using Result = BytesConsumer::Result;
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::Return;
+using ::testing::SetArgPointee;
+
+BytesConsumerTestUtil::MockBytesConsumer::MockBytesConsumer()
+{
+    ON_CALL(*this, beginRead(_, _)).WillByDefault(DoAll(SetArgPointee<0>(nullptr), SetArgPointee<1>(0), Return(Result::Error)));
+    ON_CALL(*this, endRead(_)).WillByDefault(Return(Result::Error));
+    ON_CALL(*this, getPublicState()).WillByDefault(Return(PublicState::Errored));
+    ON_CALL(*this, drainAsBlobDataHandle(_)).WillByDefault(Return(nullptr));
+    ON_CALL(*this, drainAsFormData()).WillByDefault(Return(nullptr));
+}
 
 BytesConsumerTestUtil::ReplayingBytesConsumer::ReplayingBytesConsumer(ExecutionContext* executionContext)
     : m_executionContext(executionContext)
 {
 }
 
 BytesConsumerTestUtil::ReplayingBytesConsumer::~ReplayingBytesConsumer()
 {
 }
 
@@ skipping 156 matching lines @@
 std::pair<BytesConsumer::Result, Vector<char>> BytesConsumerTestUtil::TwoPhaseReader::run()
 {
     onStateChange();
     while (m_result != BytesConsumer::Result::Done && m_result != BytesConsumer::Result::Error)
         testing::runPendingTasks();
     testing::runPendingTasks();
     return std::make_pair(m_result, std::move(m_data));
 }
 
 } // namespace blink