[NOT FOR COMMIT] Layout test for WebFonts cache-aware timeout adaption

third_party/WebKit/Source/core/testing/CacheAwareFontDisplayTest.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/testing/CacheAwareFontDisplayTest.h"
+
+#include "core/dom/Document.h"
+#include "core/fetch/FetchRequest.h"
+#include "core/fetch/FontResource.h"
+#include "core/fetch/ResourceFetcher.h"
+#include "core/fetch/ResourceLoader.h"
+#include "platform/CrossOriginAttributeValue.h"
+
+namespace blink {
+
+CacheAwareFontDisplayTest::CacheAwareFontDisplayTest(Document* document,
+                                                     const String& fontUrl) {
+  FetchRequest fetchRequest(document->completeURL(fontUrl),
+                            FetchInitiatorInfo());
+  fetchRequest.setCacheAwareLoadingEnabled(IsCacheAwareLoadingEnabled);
+  fetchRequest.setCrossOriginAccessControl(document->getSecurityOrigin(),
+                                           CrossOriginAttributeAnonymous);
+  m_fontResource = FontResource::fetch(fetchRequest, document->fetcher());
+  if (!m_fontResource)
+    return;
+  m_fontResource->m_isCallbackDisabledForTesting = true;
+  document->fetcher()->startLoad(m_fontResource);
+  DCHECK(m_fontResource->loader()->isCacheAwareLoadingActivated());
+  m_fontResource->m_loadLimitState = FontResource::UnderLimit;
+}
+
+void CacheAwareFontDisplayTest::fontLoadShortLimitCallback() {
+  if (!m_fontResource)
+    return;
+  m_fontResource->fontLoadShortLimitCallback(nullptr);
+}
+
+void CacheAwareFontDisplayTest::fontLoadLongLimitCallback() {
+  if (!m_fontResource)
+    return;
+  m_fontResource->fontLoadLongLimitCallback(nullptr);
+}
+
+void CacheAwareFontDisplayTest::willReloadAfterDiskCacheMiss() {
+  if (!m_fontResource)
+    return;
+  DCHECK(m_fontResource->m_isCallbackDisabledForTesting);
+  m_fontResource->m_isCallbackDisabledForTesting = false;
+  m_fontResource->willReloadAfterDiskCacheMiss();
+}
+
+DEFINE_TRACE(CacheAwareFontDisplayTest) {
+  visitor->trace(m_fontResource);
+}
+
+}  // namespace blink