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simonjam@chromium.org authored
https://bugs.webkit.org/show_bug.cgi?id=110527 Source/WebCore: Reviewed by Nate Chapin. This improves Speed Index by ~5%, because it encourages us to load images that are needed for painting over speculative preloads. Ideally, all embedders would use this, but it relies on ResourceHandle::didChangePriority being implemented. Currently, only Chrome does that. Test: http/tests/loading/promote-img-preload-priority.html * loader/FrameLoaderClient.h: (FrameLoaderClient): (WebCore::FrameLoaderClient::dispatchDidChangeResourcePriority): Added callback to enable testing. * loader/cache/CachedResource.cpp: (WebCore::CachedResource::setLoadPriority): Signal callback. * loader/cache/CachedResourceLoader.cpp: (WebCore::CachedResourceLoader::preload): Actual behavior change. Source/WebKit/chromium: Plumb the didChangePriority signal into DRT so it can be tested. Reviewed by Nate Chapin. * public/WebFrameClient.h: (WebKit): (WebKit::WebFrameClient::didChangeResourcePriority): (WebFrameClient): * src/FrameLoaderClientImpl.cpp: (WebKit::FrameLoaderClientImpl::dispatchDidChangeResourcePriority): (WebKit): * src/FrameLoaderClientImpl.h: (FrameLoaderClientImpl): Tools: Plumb the didChangePriority signal into DRT so it can be tested. Reviewed by Nate Chapin. * DumpRenderTree/chromium/TestRunner/public/WebTestProxy.h: (WebKit): (WebTestRunner::WebTestProxy::didChangeResourcePriority): * DumpRenderTree/chromium/TestRunner/src/TestRunner.cpp: (WebTestRunner::TestRunner::TestRunner): (WebTestRunner::TestRunner::reset): (WebTestRunner::TestRunner::shouldDumpResourcePriorities): (WebTestRunner): (WebTestRunner::TestRunner::dumpResourceRequestPriorities): * DumpRenderTree/chromium/TestRunner/src/TestRunner.h: (TestRunner): * DumpRenderTree/chromium/TestRunner/src/WebTestProxy.cpp: (WebTestRunner::WebTestProxyBase::assignIdentifierToRequest): (WebTestRunner::WebTestProxyBase::willSendRequest): (WebTestRunner::WebTestProxyBase::didChangeResourcePriority): (WebTestRunner): LayoutTests: Reviewed by Nate Chapin. * http/tests/loading/promote-img-preload-priority-expected.txt: Added. * http/tests/loading/promote-img-preload-priority.html: Added. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144248 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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