iOS Simulator LayoutTestRelay

iOS Simulator LayoutTestRelay
https://bugs.webkit.org/show_bug.cgi?id=135269

Reviewed by David Kilzer.

* LayoutTestRelay/Configurations/Base.xcconfig: Added.
* LayoutTestRelay/Configurations/DebugRelease.xcconfig: Added.
* LayoutTestRelay/LayoutTestRelay.xcodeproj/project.pbxproj: Added.
* LayoutTestRelay/LayoutTestRelay/LTPipeRelay.h: Added.
* LayoutTestRelay/LayoutTestRelay/LTPipeRelay.m: Added.
(-[LTPipeRelay inPipePath]):
(-[LTPipeRelay outPipePath]):
(-[LTPipeRelay errorPipePath]):
(-[LTPipeRelay outputStream]):
(-[LTPipeRelay initWithPrefix:]):
(-[LTPipeRelay setup]):
(-[LTPipeRelay tearDown]):
(-[LTPipeRelay connect]):
(-[LTPipeRelay disconnect]):
(-[LTPipeRelay createFIFOs]):
(-[LTPipeRelay destroyFIFOs]):
(-[LTPipeRelay relayStream:]):
(-[LTPipeRelay stream:handleEvent:]):
* LayoutTestRelay/LayoutTestRelay/LTRelay.h: Added.
* LayoutTestRelay/LayoutTestRelay/LTRelayController.h: Added.
* LayoutTestRelay/LayoutTestRelay/LTRelayController.m: Added.
(-[LTRelayController uniqueAppPath]):
(-[LTRelayController uniqueAppURL]):
(-[LTRelayController uniqueAppIdentifier]):
(-[LTRelayController processName]):
(-[LTRelayController initWithDevice:productDir:appPath:identifierSuffix:dumpToolArguments:]):
(-[LTRelayController readFileHandle:]):
(-[LTRelayController receivedStandardOutputData:]):
(-[LTRelayController receivedStandardErrorData:]):
(-[LTRelayController disconnected]):
(-[LTRelayController connected]):
(-[LTRelayController crashWithMessage:]):
(-[LTRelayController launchSimulator]):
(-[LTRelayController bootDevice]):
(-[LTRelayController createUniqueApp]):
(-[LTRelayController killApp]):
(-[LTRelayController launchApp]):
(-[LTRelayController start]):
* LayoutTestRelay/LayoutTestRelay/main.m: Added.
(usage):
(getTestingSimDevice):
(getRequiredStringArgument):
(getRemainderArguments):
(main):
* LayoutTestRelay/Makefile: Added.
* Tools/Scripts/build-layouttestrelay: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@171800 268f45cc-cd09-0410-ab3c-d52691b4dbfc