Replace MockImageResourceClient with MockImageResourceObserver

third_party/WebKit/Source/core/loader/resource/MockImageResourceClient.cpp

-// Copyright 2016 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 "core/loader/resource/MockImageResourceClient.h"
-
-#include "core/loader/resource/ImageResource.h"
-#include "core/loader/resource/ImageResourceContent.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-
-MockImageResourceClient::MockImageResourceClient(ImageResource* resource)
-    : MockResourceClient(resource),
-      m_imageChangedCount(0),
-      m_encodedSizeOnLastImageChanged(0),
-      m_imageNotifyFinishedCount(0),
-      m_encodedSizeOnImageNotifyFinished(0) {
-  toImageResource(m_resource)->getContent()->addObserver(this);
-}
-
-MockImageResourceClient::~MockImageResourceClient() {}
-
-void MockImageResourceClient::removeAsClient() {
-  toImageResource(m_resource)->getContent()->removeObserver(this);
-  MockResourceClient::removeAsClient();
-}
-
-void MockImageResourceClient::dispose() {
-  if (m_resource)
-    toImageResource(m_resource)->getContent()->removeObserver(this);
-  MockResourceClient::dispose();
-}
-
-void MockImageResourceClient::imageChanged(ImageResourceContent* image,
-                                           const IntRect*) {
-  m_imageChangedCount++;
-  m_encodedSizeOnLastImageChanged = m_resource->encodedSize();
-}
-
-void MockImageResourceClient::imageNotifyFinished(ImageResourceContent* image) {
-  ASSERT_EQ(0, m_imageNotifyFinishedCount);
-  m_imageNotifyFinishedCount++;
-  m_encodedSizeOnImageNotifyFinished = m_resource->encodedSize();
-}
-
-bool MockImageResourceClient::notifyFinishedCalled() const {
-  return m_notifyFinishedCalled;
-}
-
-}  // namespace blink