https://bugs.webkit.org/show_bug.cgi?id=48014
<rdar://problem/8202716>

Reviewed by Adam Barth and Darin Adler.

* loader/MainResourceLoader.cpp:
(WebCore::MainResourceLoader::continueAfterContentPolicy):
Resume loading.

(WebCore::MainResourceLoader::didReceiveResponse):
Defer loading until we hear back from the policy client.

WebKitTools: Using the decidePolicyForMIMEType delegate message in an asynchronous manner does not work
https://bugs.webkit.org/show_bug.cgi?id=48014
<rdar://problem/8202716>

Reviewed by Adam Barth and Darin Adler.

* DumpRenderTree/LayoutTestController.cpp:
(setCustomPolicyDelegateCallback):
Add callIgnoreInDecidePolicyForMIMETypeAfterOneSecond argument.

* DumpRenderTree/gtk/LayoutTestControllerGtk.cpp:
(LayoutTestController::setCustomPolicyDelegate):
Add callIgnoreInDecidePolicyForMIMETypeAfterOneSecond argument.

* DumpRenderTree/mac/LayoutTestControllerMac.mm:
(LayoutTestController::setCustomPolicyDelegate):
Add callIgnoreInDecidePolicyForMIMETypeAfterOneSecond argument.

* DumpRenderTree/mac/PolicyDelegate.h:
* DumpRenderTree/mac/PolicyDelegate.mm:
(-[PolicyDelegate webView:decidePolicyForMIMEType:request:frame:decisionListener:]):
If _callIgnoreInDecidePolicyForMIMETypeAfterOneSecond is true, call [listener ignore] after one second.

(-[PolicyDelegate setCallIgnoreInDecidePolicyForMIMETypeAfterOneSecond:]):
Update _callIgnoreInDecidePolicyForMIMETypeAfterOneSecond.

* DumpRenderTree/win/LayoutTestControllerWin.cpp:
(LayoutTestController::setCustomPolicyDelegate):
Add callIgnoreInDecidePolicyForMIMETypeAfterOneSecond argument.

* DumpRenderTree/wx/LayoutTestControllerWx.cpp:
(LayoutTestController::setCustomPolicyDelegate):
Add callIgnoreInDecidePolicyForMIMETypeAfterOneSecond argument.

LayoutTests: Using the decidePolicyForMIMEType delegate message in an asynchronous manner does not work
https://bugs.webkit.org/show_bug.cgi?id=48014
<rdar://problem/8202716>

Reviewed by Adam Barth and Darin Adler.

Add tests and update the skipped list.

* fast/loader/decide-policy-for-mime-type-async-expected.txt: Added.
* fast/loader/decide-policy-for-mime-type-async.html: Added.
* platform/gtk/Skipped:
* platform/mac-wk2/Skipped:
* platform/qt/Skipped:
* platform/qt-wk2/Skipped:
* platform/win/Skipped:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@70367 268f45cc-cd09-0410-ab3c-d52691b4dbfc