Split ImageResourceClient into ResourceClient and ImageResourceObserver [1/2]

third_party/WebKit/Source/core/fetch/MockResourceClients.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 "core/fetch/MockImageResourceClient.h"
+#include "core/fetch/MockResourceClients.h"
 
 #include "core/fetch/ImageResource.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
-MockImageResourceClient::MockImageResourceClient(PassRefPtrWillBeRawPtr<Resource> resource)
+MockResourceClient::MockResourceClient(PassRefPtrWillBeRawPtr<Resource> resource)
     : m_resource(resource.get())
-    , m_imageChangedCount(0)
     , m_notifyFinishedCalled(false)
 {
     m_resource->addClient(this);
 }
 
-MockImageResourceClient::~MockImageResourceClient()
+MockResourceClient::~MockResourceClient()
 {
     if (m_resource)
         m_resource->removeClient(this);
 }
-
-void MockImageResourceClient::notifyFinished(Resource*)
+void MockResourceClient::notifyFinished(Resource*)
 {
     ASSERT_FALSE(m_notifyFinishedCalled);
     m_notifyFinishedCalled = true;
 }
 
-void MockImageResourceClient::removeAsClient()
+void MockResourceClient::removeAsClient()
 {
     m_resource->removeClient(this);
     m_resource = nullptr;
 }
 
+MockImageResourceClient::MockImageResourceClient(PassRefPtrWillBeRawPtr<ImageResource> resource)
+    : MockResourceClient(resource)
+    , m_imageChangedCount(0)
+{
+    toImageResource(m_resource.get())->addObserver(this);
+}
+
+MockImageResourceClient::~MockImageResourceClient()
+{
+    if (m_resource)
+        toImageResource(m_resource.get())->removeObserver(this);
+}
+
+void MockImageResourceClient::removeAsClient()
+{
+    toImageResource(m_resource.get())->removeObserver(this);
+    MockResourceClient::removeAsClient();
+}
+
+void MockImageResourceClient::imageChanged(ImageResource*, const IntRect*)
+{
+    m_imageChangedCount++;
+}
+
 } // namespace blink