Remove resource type-specific fetching logic from ResourceFetcher

Source/core/fetch/ImageResourceTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 73 matching lines @@
     return jpeg;
 }
 
 TEST(ImageResourceTest, MultipartImage)
 {
     RefPtrWillBeRawPtr<ResourceFetcher> fetcher = ResourceFetcher::create(nullptr);
     KURL testURL(ParsedURLString, "http://www.test.com/cancelTest.html");
     URLTestHelpers::registerMockedURLLoad(testURL, "cancelTest.html", "text/html");
 
     // Emulate starting a real load, but don't expect any "real" WebURLLoaderClient callbacks.
-    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(testURL));
+    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(testURL), nullptr);
     cachedImage->setIdentifier(createUniqueIdentifier());
     cachedImage->load(fetcher.get(), ResourceLoaderOptions());
     Platform::current()->unitTestSupport()->unregisterMockedURL(testURL);
 
     MockImageResourceClient client;
     cachedImage->addClient(&client);
     EXPECT_EQ(Resource::Pending, cachedImage->status());
 
     // Send the multipart response. No image or data buffer is created.
     // Note that the response must be routed through ResourceLoader to
@@ skipping 36 matching lines @@
 }
 
 TEST(ImageResourceTest, CancelOnDetach)
 {
     KURL testURL(ParsedURLString, "http://www.test.com/cancelTest.html");
     URLTestHelpers::registerMockedURLLoad(testURL, "cancelTest.html", "text/html");
 
     RefPtrWillBeRawPtr<ResourceFetcher> fetcher = ResourceFetcher::create(nullptr);
 
     // Emulate starting a real load.
-    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(testURL));
+    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(testURL), nullptr);
     cachedImage->setIdentifier(createUniqueIdentifier());
 
     cachedImage->load(fetcher.get(), ResourceLoaderOptions());
     memoryCache()->add(cachedImage.get());
 
     MockImageResourceClient client;
     cachedImage->addClient(&client);
     EXPECT_EQ(Resource::Pending, cachedImage->status());
 
     // The load should still be alive, but a timer should be started to cancel the load inside removeClient().
     cachedImage->removeClient(&client);
     EXPECT_EQ(Resource::Pending, cachedImage->status());
     EXPECT_NE(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
 
     // Trigger the cancel timer, ensure the load was cancelled and the resource was evicted from the cache.
     blink::testing::runPendingTasks();
     EXPECT_EQ(Resource::LoadError, cachedImage->status());
     EXPECT_EQ(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
 
     Platform::current()->unitTestSupport()->unregisterMockedURL(testURL);
 }
 
 TEST(ImageResourceTest, DecodedDataRemainsWhileHasClients)
 {
-    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest());
+    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(), nullptr);
     cachedImage->setLoading(true);
 
     MockImageResourceClient client;
     cachedImage->addClient(&client);
 
     // Send the image response.
     cachedImage->responseReceived(ResourceResponse(KURL(), "multipart/x-mixed-replace", 0, nullAtom, String()), nullptr);
 
     Vector<unsigned char> jpeg = jpegImage();
     cachedImage->responseReceived(ResourceResponse(KURL(), "image/jpeg", jpeg.size(), nullAtom, String()), nullptr);
@@ skipping 13 matching lines @@
     // The ImageResource no longer has clients. The image should be deleted by prune.
     cachedImage->removeClient(&client);
     cachedImage->prune();
     ASSERT_FALSE(cachedImage->hasClients());
     ASSERT_FALSE(cachedImage->hasImage());
     ASSERT_TRUE(cachedImage->image()->isNull());
 }
 
 TEST(ImageResourceTest, UpdateBitmapImages)
 {
-    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest());
+    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(), nullptr);
     cachedImage->setLoading(true);
 
     MockImageResourceClient client;
     cachedImage->addClient(&client);
 
     // Send the image response.
     Vector<unsigned char> jpeg = jpegImage();
     cachedImage->responseReceived(ResourceResponse(KURL(), "image/jpeg", jpeg.size(), nullAtom, String()), nullptr);
     cachedImage->appendData(reinterpret_cast<const char*>(jpeg.data()), jpeg.size());
     cachedImage->finish();
     ASSERT_FALSE(cachedImage->errorOccurred());
     ASSERT_TRUE(cachedImage->hasImage());
     ASSERT_FALSE(cachedImage->image()->isNull());
     ASSERT_EQ(client.imageChangedCount(), 2);
     ASSERT_TRUE(client.notifyFinishedCalled());
 
     HashSet<ImageResource*> bitmapImages;
     ASSERT_TRUE(cachedImage->image()->isBitmapImage());
     bitmapImages.add(cachedImage.get());
 }
 
 } // namespace