https://bugs.webkit.org/show_bug.cgi?id=125879

Reviewed by Darin Adler.

* WebCore.exp.in: Added symbols for MemoryCache::{addImageToCache, removeImageFromCache}().
* loader/DocumentLoader.cpp:
(WebCore::areAllLoadersPageCacheAcceptable): Added.
(WebCore::DocumentLoader::DocumentLoader): Initialize m_subresourceLoadersArePageCacheAcceptable.
(WebCore::DocumentLoader::stopLoading): Modified to conditionally call areAllLoadersPageCacheAcceptable().
(WebCore::DocumentLoader::handleSubstituteDataLoadSoon): Modified to query FrameLoader::loadsSynchronously()
whether to load substitute data immediately or to schedule a load.
(WebCore::DocumentLoader::responseReceived): Modified to create a content filer when the response protocol
is either HTTP or HTTPS, assuming content filtering is enabled.
(WebCore::DocumentLoader::dataReceived): Modified to call DocumentLoader::setContentFilterForBlockedLoad()
as appropriate.
(WebCore::DocumentLoader::clearMainResourceLoader): Added PLATFORM(IOS)-guarded code. Also added a
FIXME comment to remove the PLATFORM(IOS)-guard once we upstream the iOS changes to ResourceRequest.h.
(WebCore::DocumentLoader::setResponseMIMEType): Added; guard by PLATFORM(IOS). Also added FIXME comment.
(WebCore::DocumentLoader::startLoadingMainResource): Added PLATFORM(IOS)-guarded code. Also added a
FIXME comment to remove the PLATFORM(IOS)-guard once we upstream the iOS changes to ResourceRequest.h.
I also substituted static NeverDestroyed<> for DEFINE_STATIC_LOCAL.
(WebCore::DocumentLoader::setContentFilterForBlockedLoad): Added; guarded by USE(CONTENT_FILTERING).
(WebCore::DocumentLoader::handleContentFilterRequest): Added; guarded by USE(CONTENT_FILTERING) and PLATFORM(IOS).
Also added a FIXME comment to remove the PLATFORM(IOS) guard inside its function body once we upstream
file ContentFilterIOS.mm and implement ContentFilter::requestUnblockAndDispatchIfSuccessful() for Mac.
* loader/DocumentLoader.h:
(WebCore::DocumentLoader::setResponse): Added; guard by PLATFORM(IOS). Also added a FIXME comment as
this method seems to violate the encapsulation of DocumentLoader.
(WebCore::DocumentLoader::subresourceLoadersArePageCacheAcceptable): Added.
(WebCore::DocumentLoader::documentURL): Added; returns the URL of the document resulting from the DocumentLoader.
* loader/DocumentWriter.cpp:
(WebCore::DocumentWriter::createDocument): Added iOS-specific code to create a PDF document.
* loader/EmptyClients.cpp:
(WebCore::EmptyChromeClient::openDateTimeChooser): Opt out of compiling this code for iOS. Also substituted
nullptr for 0.
* loader/EmptyClients.h:
* loader/FrameLoader.cpp:
(WebCore::FrameLoader::FrameProgressTracker::~FrameProgressTracker):
(WebCore::FrameLoader::FrameLoader): Initialize m_loadsSynchronously.
(WebCore::FrameLoader::initForSynthesizedDocument): Added; guarded by PLATFORM(IOS). Also added FIXME comment.
(WebCore::FrameLoader::checkCompleted): Added iOS-specific code with FIXME comment.
(WebCore::FrameLoader::willLoadMediaElementURL): Added iOS-specific code.
(WebCore::FrameLoader::stopForUserCancel): Added iOS-specific code and FIXME comment.
(WebCore::FrameLoader::commitProvisionalLoad): Added iOS-specific code and FIXME comment.
(WebCore::FrameLoader::transitionToCommitted): Opt out of ENABLE(TOUCH_EVENTS) logic when building for iOS.
(WebCore::FrameLoader::didFirstLayout): Added iOS-specific code.
(WebCore::FrameLoader::connectionProperties): Added; guarded by PLATFORM(IOS).
(WebCore::createWindow): Added iOS-specific code and FIXME comment.
* loader/FrameLoader.h:
(WebCore::FrameLoader::setLoadsSynchronously): Added.
(WebCore::FrameLoader::loadsSynchronously): Added.
* loader/FrameLoaderClient.h:
* loader/HistoryController.cpp:
(WebCore::HistoryController::restoreScrollPositionAndViewState): Opt out of scroll position logic when building for iOS.
(WebCore::HistoryController::replaceCurrentItem): Added.
* loader/HistoryController.h:
* loader/PlaceholderDocument.h: Changed access control of constructor from private to protected and removed the FINAL
keyword from the class so that we can subclass PlaceholderDocument on iOS.
* loader/PolicyChecker.cpp:
(WebCore::PolicyChecker::checkNavigationPolicy): Added USE(QUICK_LOOK)- and USE(CONTENT_FILTERING)-guarded code.
* loader/ResourceBuffer.cpp:
(WebCore::ResourceBuffer::shouldUsePurgeableMemory): Added; guarded by PLATFORM(IOS).
* loader/ResourceBuffer.h:
* loader/ResourceLoadNotifier.cpp:
(WebCore::ResourceLoadNotifier::dispatchWillSendRequest): Added USE(QUICK_LOOK)-guarded code.
* loader/ResourceLoadScheduler.cpp:
(WebCore::ResourceLoadScheduler::scheduleSubresourceLoad): Added iOS-specific code.
(WebCore::ResourceLoadScheduler::scheduleLoad): Ditto.
(WebCore::ResourceLoadScheduler::remove): Added iOS-specific code with FIXME comment.
(WebCore::ResourceLoadScheduler::crossOriginRedirectReceived): Added null-check for variable oldHost. Also added
iOS-specific code.
(WebCore::ResourceLoadScheduler::servePendingRequests): Added iOS-specific code.
* loader/ResourceLoader.cpp:
(WebCore::ResourceLoader::init): Ditto.
(WebCore::ResourceLoader::willSendRequest): Ditto.
(WebCore::ResourceLoader::connectionProperties): Added; guarded by PLATFORM(IOS).
* loader/ResourceLoader.h:
(WebCore::ResourceLoader::startLoading): Added; guarded by PLATFORM(IOS).
(WebCore::ResourceLoader::iOSOriginalRequest): Added; iOS-specific.
* loader/SubframeLoader.cpp:
(WebCore::SubframeLoader::loadPlugin): Added iOS-specific code.
* loader/SubresourceLoader.cpp:
(WebCore::SubresourceLoader::create): Ditto.
(WebCore::SubresourceLoader::startLoading): Added; guarded by PLATFORM(IOS).
(WebCore::SubresourceLoader::didFinishLoading): Added iOS-specific code.
(WebCore::SubresourceLoader::willCancel): Ditto.
(WebCore::SubresourceLoader::notifyDone): Ditto.
(WebCore::SubresourceLoader::releaseResources): Ditto.
* loader/SubresourceLoader.h:
* loader/appcache/ApplicationCacheStorage.cpp:
(WebCore::ApplicationCacheStorage::loadCacheGroup): Added iOS-specific code.
(WebCore::ApplicationCacheStorage::loadManifestHostHashes): Ditto.
(WebCore::ApplicationCacheStorage::cacheGroupForURL): Ditto.
(WebCore::ApplicationCacheStorage::fallbackCacheGroupForURL): Ditto.
(WebCore::ApplicationCacheStorage::calculateQuotaForOrigin): Ditto.
(WebCore::ApplicationCacheStorage::calculateUsageForOrigin): Ditto.
(WebCore::ApplicationCacheStorage::calculateRemainingSizeForOriginExcludingCache): Ditto.
(WebCore::ApplicationCacheStorage::storeUpdatedQuotaForOrigin): Ditto.
(WebCore::ApplicationCacheStorage::executeSQLCommand): Ditto.
(WebCore::ApplicationCacheStorage::verifySchemaVersion): Ditto.
(WebCore::ApplicationCacheStorage::openDatabase): Ditto.
(WebCore::ApplicationCacheStorage::executeStatement): Ditto.
(WebCore::ApplicationCacheStorage::store): Ditto.
(WebCore::ApplicationCacheStorage::storeUpdatedType): Ditto.
(WebCore::ApplicationCacheStorage::ensureOriginRecord): Ditto.
(WebCore::ApplicationCacheStorage::loadCache): Ditto.
(WebCore::ApplicationCacheStorage::remove): Ditto.
(WebCore::ApplicationCacheStorage::empty): Ditto.
(WebCore::ApplicationCacheStorage::storeCopyOfCache): Ditto.
(WebCore::ApplicationCacheStorage::manifestURLs): Ditto.
(WebCore::ApplicationCacheStorage::cacheGroupSize): Ditto.
(WebCore::ApplicationCacheStorage::deleteCacheGroup): Ditto.
(WebCore::ApplicationCacheStorage::vacuumDatabaseFile): Ditto.
* loader/cache/CachedImage.cpp:
(WebCore::CachedImage::CachedImage): Added.
(WebCore::CachedImage::imageSizeForRenderer): Added iOS-specific code.
(WebCore::CachedImageManual::CachedImageManual): Added; guarded by USE(CF). Also added FIXME comment to incorporate
the functionality of this class into CachedImage and to remove the USE(CF)-guard once we make MemoryCache::addImageToCache()
platform-independent.
(WebCore::CachedImageManual::mustRevalidateDueToCacheHeaders): Added; guarded by USE(CF).
* loader/cache/CachedImage.h: Removed FINAL keyword from class so that we can define derived class CachedImageManual.
(WebCore::CachedImage::isManual): Added; guarded by USE(CF). Also added FIXME comment.
(WebCore::CachedImageManual::addFakeClient): Added; guarded by USE(CF).
(WebCore::CachedImageManual::removeFakeClient): Added; guarded by USE(CF).
* loader/cache/CachedResource.cpp:
(WebCore::CachedResource::load): Added iOS-specific code.
* loader/cache/CachedResource.h:
* loader/cache/CachedResourceLoader.cpp:
(WebCore::CachedResourceLoader::loadDone): Added argument shouldPerformPostLoadActions, defaults to true. Modified
to conditionally call performPostLoadActions() with respect to the argument shouldPerformPostLoadActions.
(WebCore::CachedResourceLoader::preload): Added iOS-specific code.
(WebCore::CachedResourceLoader::checkForPendingPreloads): Ditto.
* loader/cache/CachedResourceLoader.h:
* loader/cache/MemoryCache.cpp:
(WebCore::memoryCache):
(WebCore::MemoryCache::add): Added iOS-specific code.
(WebCore::MemoryCache::revalidationFailed): Ditto.
(WebCore::MemoryCache::resourceForRequest): Ditto.
(WebCore::MemoryCache::addImageToCache): Added; guarded by USE(CF). Also added FIXME comment.
(WebCore::MemoryCache::removeImageFromCache): Added; guarded by USE(CF). Also added FIXME comment.
(WebCore::MemoryCache::pruneLiveResources): Modified to take argument shouldDestroyDecodedDataForAllLiveResources.
(WebCore::MemoryCache::pruneLiveResourcesToSize): Modified to take argument shouldDestroyDecodedDataForAllLiveResources,
defaults to false. When this argument is true we destroy the decoded data for all live resources from the memory cache.
Such functionality is useful when the system is running low on memory.
(WebCore::MemoryCache::evict): Added iOS-specific code.
* loader/cache/MemoryCache.h:
* loader/cf/SubresourceLoaderCF.cpp:
(WebCore::SubresourceLoader::didReceiveDataArray): Actually make this code compile. In particular, there is no
method called sendDataToResource on SubresourceLoader or in its class hierarchy.
* loader/mac/DocumentLoaderMac.cpp:
(WebCore::DocumentLoader::schedule): This method has an empty implementation when building for iOS.
(WebCore::DocumentLoader::unschedule): Ditto.
* platform/graphics/BitmapImage.h: Exposed decodedSize() to access the decoded size of the bitmap image.
This functionality is used in MemoryCache::addImageToCache().

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@160841 268f45cc-cd09-0410-ab3c-d52691b4dbfc