Stop waiting for messages from the web process after a timeout elapses

Stop waiting for messages from the web process after a timeout elapses

TestController::runUntil now takes a timeout parameter that specifies
how long to wait for the condition to become true. WebKitTestRunner
takes a --timeout flag that specifies how long the timeout should be.
run-webkit-tests passes this flag to WebKitTestRunner so its timeout
will be similar to run-webkit-tests.

Fixes <http://webkit.org/b/43047> <rdar://problem/8365833>
WebKitTestRunner waits forever if the web process crashes

Reviewed by Darin Adler and Anders Carlsson.

* Scripts/old-run-webkit-tests:
(top level): Moved the GuardMalloc timeout adjustment here from
readFromDumpToolWithTimer.
(openDumpTool): Make WTR use a timeout similar to but slightly shorter
than the one that was specified on the command line.

* WebKitTestRunner/TestController.cpp:
(WTR::TestController::TestController): Initialize our timeout values.
(WTR::TestController::initialize): Parse the --timeout flag and use it
to modify our timeout values.
(WTR::TestController::resetStateToConsistentValues): Changed to use a
short timeout while waiting for the web process to reset and to return
a boolean indicating whether we were able to reset the web process.
Uses a 5-second timeout while waiting for the process to be reset.
(WTR::TestController::runTest): Changed to return a boolean indicating
whether we were able to reset the web process (and thus run the test).
(WTR::TestController::runUntil): Call through to platformRunUntil.

(WTR::TestController::runTestingServerLoop):
(WTR::TestController::run):
Changed to bail if any test can't be run. This will cause the process
to exit. (Unfortunately this will make run-webkit-tests think we
crashed; see <http://webkit.org/b/48943>.)

* WebKitTestRunner/TestController.h: Added platformRunUntil,
m_longTimeout, and m_shortTimeout.

* WebKitTestRunner/TestInvocation.cpp:
(WTR::TestInvocation::invoke): Use a short timeout when waiting for the
initial response and a long timeout when waiting for the test to
complete. Check whether runUntil timed out and print an error message
if so.

* WebKitTestRunner/mac/TestControllerMac.mm:
(WTR::TestController::platformRunUntil): Renamed from runUntil. Pass
[NSDate distantPast] to -[NSRunLoop runMode:beforeDate:] so that we
won't block waiting for the run loop. Only loop until the timeout
elapses.

* WebKitTestRunner/qt/TestControllerQt.cpp:
(WTR::TestController::platformRunUntil): Renamed from runUntil. Added a
FIXME about honoring the timeout.

* WebKitTestRunner/win/TestControllerWin.cpp:
(WTR::TestController::platformRunUntil): Renamed from runUntil. Use
::MsgWaitForMultipleObjectsEx to implement the timeout. Changed to use
::PeekMessageW so that we don't block waiting for messages to become
available.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@71263 268f45cc-cd09-0410-ab3c-d52691b4dbfc