Loading: move FontResource to core/loader/resource

third_party/WebKit/Source/core/fetch/FontResource.cpp

Index: third_party/WebKit/Source/core/fetch/FontResource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/FontResource.cpp b/third_party/WebKit/Source/core/fetch/FontResource.cpp
deleted file mode 100644
index 61364c3e737ea4b94e09d95c61ffdec8dee6bc3b..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/fetch/FontResource.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2009 Torch Mobile, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "core/fetch/FontResource.h"
-
-#include "core/fetch/FetchRequest.h"
-#include "core/fetch/ResourceClientWalker.h"
-#include "core/fetch/ResourceFetcher.h"
-#include "platform/Histogram.h"
-#include "platform/SharedBuffer.h"
-#include "platform/fonts/FontCustomPlatformData.h"
-#include "platform/fonts/FontPlatformData.h"
-#include "wtf/CurrentTime.h"
-
-namespace blink {
-
-// Durations of font-display periods.
-// https://tabatkins.github.io/specs/css-font-display/#font-display-desc
-static const double fontLoadWaitShortLimitSec = 0.1;
-static const double fontLoadWaitLongLimitSec = 3.0;
-
-enum FontPackageFormat {
-  PackageFormatUnknown,
-  PackageFormatSFNT,
-  PackageFormatWOFF,
-  PackageFormatWOFF2,
-  PackageFormatSVG,
-  PackageFormatEnumMax
-};
-
-static FontPackageFormat packageFormatOf(SharedBuffer* buffer) {
-  if (buffer->size() < 4)
-    return PackageFormatUnknown;
-
-  const char* data = buffer->data();
-  if (data[0] == 'w' && data[1] == 'O' && data[2] == 'F' && data[3] == 'F')
-    return PackageFormatWOFF;
-  if (data[0] == 'w' && data[1] == 'O' && data[2] == 'F' && data[3] == '2')
-    return PackageFormatWOFF2;
-  return PackageFormatSFNT;
-}
-
-static void recordPackageFormatHistogram(FontPackageFormat format) {
-  DEFINE_THREAD_SAFE_STATIC_LOCAL(
-      EnumerationHistogram, packageFormatHistogram,
-      new EnumerationHistogram("WebFont.PackageFormat", PackageFormatEnumMax));
-  packageFormatHistogram.count(format);
-}
-
-FontResource* FontResource::fetch(FetchRequest& request,
-                                  ResourceFetcher* fetcher) {
-  DCHECK_EQ(request.resourceRequest().frameType(),
-            WebURLRequest::FrameTypeNone);
-  request.mutableResourceRequest().setRequestContext(
-      WebURLRequest::RequestContextFont);
-  return toFontResource(
-      fetcher->requestResource(request, FontResourceFactory()));
-}
-
-FontResource::FontResource(const ResourceRequest& resourceRequest,
-                           const ResourceLoaderOptions& options)
-    : Resource(resourceRequest, Font, options),
-      m_loadLimitState(LoadNotStarted),
-      m_corsFailed(false),
-      m_fontLoadShortLimitTimer(this,
-                                &FontResource::fontLoadShortLimitCallback),
-      m_fontLoadLongLimitTimer(this, &FontResource::fontLoadLongLimitCallback) {
-}
-
-FontResource::~FontResource() {}
-
-void FontResource::didAddClient(ResourceClient* c) {
-  DCHECK(FontResourceClient::isExpectedType(c));
-  Resource::didAddClient(c);
-  if (m_loadLimitState == ShortLimitExceeded ||
-      m_loadLimitState == LongLimitExceeded)
-    static_cast<FontResourceClient*>(c)->fontLoadShortLimitExceeded(this);
-  if (m_loadLimitState == LongLimitExceeded)
-    static_cast<FontResourceClient*>(c)->fontLoadLongLimitExceeded(this);
-}
-
-void FontResource::setRevalidatingRequest(const ResourceRequest& request) {
-  // Reload will use the same object, and needs to reset |m_loadLimitState|
-  // before any didAddClient() is called again.
-  m_loadLimitState = LoadNotStarted;
-  Resource::setRevalidatingRequest(request);
-}
-
-void FontResource::startLoadLimitTimers() {
-  DCHECK(isLoading());
-  DCHECK_EQ(m_loadLimitState, LoadNotStarted);
-  m_loadLimitState = UnderLimit;
-  m_fontLoadShortLimitTimer.startOneShot(fontLoadWaitShortLimitSec,
-                                         BLINK_FROM_HERE);
-  m_fontLoadLongLimitTimer.startOneShot(fontLoadWaitLongLimitSec,
-                                        BLINK_FROM_HERE);
-}
-
-bool FontResource::ensureCustomFontData() {
-  if (!m_fontData && !errorOccurred() && !isLoading()) {
-    if (data())
-      m_fontData = FontCustomPlatformData::create(data(), m_otsParsingMessage);
-
-    if (m_fontData) {
-      recordPackageFormatHistogram(packageFormatOf(data()));
-    } else {
-      setStatus(DecodeError);
-      recordPackageFormatHistogram(PackageFormatUnknown);
-    }
-  }
-  return m_fontData.get();
-}
-
-FontPlatformData FontResource::platformDataFromCustomData(
-    float size,
-    bool bold,
-    bool italic,
-    FontOrientation orientation) {
-  DCHECK(m_fontData);
-  return m_fontData->fontPlatformData(size, bold, italic, orientation);
-}
-
-void FontResource::fontLoadShortLimitCallback(TimerBase*) {
-  if (!isLoading())
-    return;
-  DCHECK_EQ(m_loadLimitState, UnderLimit);
-  m_loadLimitState = ShortLimitExceeded;
-  ResourceClientWalker<FontResourceClient> walker(clients());
-  while (FontResourceClient* client = walker.next())
-    client->fontLoadShortLimitExceeded(this);
-}
-
-void FontResource::fontLoadLongLimitCallback(TimerBase*) {
-  if (!isLoading())
-    return;
-  DCHECK_EQ(m_loadLimitState, ShortLimitExceeded);
-  m_loadLimitState = LongLimitExceeded;
-  ResourceClientWalker<FontResourceClient> walker(clients());
-  while (FontResourceClient* client = walker.next())
-    client->fontLoadLongLimitExceeded(this);
-}
-
-void FontResource::allClientsAndObserversRemoved() {
-  m_fontData.reset();
-  Resource::allClientsAndObserversRemoved();
-}
-
-void FontResource::checkNotify() {
-  m_fontLoadShortLimitTimer.stop();
-  m_fontLoadLongLimitTimer.stop();
-
-  Resource::checkNotify();
-}
-
-bool FontResource::isLowPriorityLoadingAllowedForRemoteFont() const {
-  DCHECK(!url().protocolIsData());
-  DCHECK(!isLoaded());
-  ResourceClientWalker<FontResourceClient> walker(clients());
-  while (FontResourceClient* client = walker.next()) {
-    if (!client->isLowPriorityLoadingAllowedForRemoteFont()) {
-      return false;
-    }
-  }
-  return true;
-}
-
-void FontResource::onMemoryDump(WebMemoryDumpLevelOfDetail level,
-                                WebProcessMemoryDump* memoryDump) const {
-  Resource::onMemoryDump(level, memoryDump);
-  if (!m_fontData)
-    return;
-  const String name = getMemoryDumpName() + "/decoded_webfont";
-  WebMemoryAllocatorDump* dump = memoryDump->createMemoryAllocatorDump(name);
-  dump->addScalar("size", "bytes", m_fontData->dataSize());
-  memoryDump->addSuballocation(dump->guid(), "malloc");
-}
-
-}  // namespace blink