https://bugs.webkit.org/show_bug.cgi?id=95187

Reviewed by Yury Semikhatsky.

Source/WebCore:

Patch based on Pavel Chadnov's patch.
This patch implements Replay XHR feature in web inspector.
XMLHttpRequest's ThreadableLoaderClient is now used to map XMLHttpRequest object to ResourceLoader request identifiers.
Before initiating load all XHR parameters are now sent to inspector.
XMLHttpRequest parameters are stored in inspector's network request cache in XHRReplayData class.
When XHR replay is requested, a new XMLHttpRequest is created based on stored data.

Test: http/tests/inspector/network/network-xhr-replay.html

* inspector/Inspector.json:
* inspector/InspectorConsoleAgent.cpp:
(WebCore::InspectorConsoleAgent::didFinishXHRLoading):
* inspector/InspectorConsoleAgent.h:
(InspectorConsoleAgent):
* inspector/InspectorInstrumentation.cpp:
(WebCore):
(WebCore::InspectorInstrumentation::documentThreadableLoaderStartedLoadingForClientImpl):
(WebCore::InspectorInstrumentation::willLoadXHRImpl):
(WebCore::InspectorInstrumentation::didFailXHRLoadingImpl):
(WebCore::InspectorInstrumentation::didFinishXHRLoadingImpl):
* inspector/InspectorInstrumentation.h:
(WebCore):
(InspectorInstrumentation):
(WebCore::InspectorInstrumentation::documentThreadableLoaderStartedLoadingForClient):
(WebCore::InspectorInstrumentation::willLoadXHR):
(WebCore::InspectorInstrumentation::didFailXHRLoading):
(WebCore::InspectorInstrumentation::didFinishXHRLoading):
* inspector/InspectorResourceAgent.cpp:
(WebCore::InspectorResourceAgent::didLoadResourceFromMemoryCache):
(WebCore::InspectorResourceAgent::documentThreadableLoaderStartedLoadingForClient):
(WebCore):
(WebCore::InspectorResourceAgent::willLoadXHR):
(WebCore::InspectorResourceAgent::didFailXHRLoading):
(WebCore::InspectorResourceAgent::didFinishXHRLoading):
(WebCore::InspectorResourceAgent::replayXHR):
* inspector/InspectorResourceAgent.h:
(WebCore):
(InspectorResourceAgent):
* inspector/NetworkResourcesData.cpp:
(WebCore::XHRReplayData::create):
(WebCore):
(WebCore::XHRReplayData::addHeader):
(WebCore::XHRReplayData::XHRReplayData):
(WebCore::NetworkResourcesData::xhrReplayData):
(WebCore::NetworkResourcesData::setXHRReplayData):
(WebCore::NetworkResourcesData::reuseXHRReplayData):
(WebCore::NetworkResourcesData::clear):
* inspector/NetworkResourcesData.h:
(XHRReplayData):
(WebCore::XHRReplayData::method):
(WebCore::XHRReplayData::url):
(WebCore::XHRReplayData::async):
(WebCore::XHRReplayData::formData):
(WebCore::XHRReplayData::headers):
(WebCore::XHRReplayData::includeCredentials):
(WebCore):
(WebCore::NetworkResourcesData::ResourceData::xhrReplayData):
(WebCore::NetworkResourcesData::ResourceData::setXHRReplayData):
(ResourceData):
(NetworkResourcesData):
* inspector/front-end/NetworkPanel.js:
(WebInspector.NetworkLogView.prototype._contextMenu):
(WebInspector.NetworkLogView.prototype._replayXHR):
* loader/DocumentThreadableLoader.cpp:
(WebCore::DocumentThreadableLoader::loadRequest): added documentThreadableLoaderStartedLoadingForClient instrumentation
so that inspector could map XMLHttpRequest to ResourceLoader's identifiers.
* loader/cache/CachedResource.h:
(WebCore::CachedResource::loader): DocumentThreadableLoader uses CachedResource::loader() to get ResourceLoader identifier.
(CachedResource):
* xml/XMLHttpRequest.cpp:
(WebCore::XMLHttpRequest::sendFromInspector): Added a method for sending XMLHttpRequests based on request body stored in inspector.
(WebCore):
(WebCore::XMLHttpRequest::createRequest): Replaced will/didLoadXHRSynchonously instrumentations with willLoadXHR instrumentation.
(WebCore::XMLHttpRequest::internalAbort): Added didFailXHRLoadingInstrumentation
(WebCore::XMLHttpRequest::didFinishLoading): Added didFinishXHRLoading instrumentation
* xml/XMLHttpRequest.h:
(XMLHttpRequest):

LayoutTests:

Added XHR replay test.

* http/tests/inspector/network/network-xhr-replay-expected.txt: Added.
* http/tests/inspector/network/network-xhr-replay.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@128580 268f45cc-cd09-0410-ab3c-d52691b4dbfc