Source/WebKit2: Need a client callback for when the user tires to interact with an already unresponsive page
https://bugs.webkit.org/show_bug.cgi?id=84201
<rdar://problem/11140862>

Reviewed by Andreas Kling.

Add a interactionOccurredWhileProcessUnresponsive callback that's called when the unresponsiveness timer
fires while it's already unresponsive.

* UIProcess/API/C/WKPage.h:
* UIProcess/ResponsivenessTimer.cpp:
(WebKit):
(WebKit::ResponsivenessTimer::timerFired):
(WebKit::ResponsivenessTimer::start):
* UIProcess/ResponsivenessTimer.h:
(Client):
* UIProcess/WebLoaderClient.cpp:
(WebKit::WebLoaderClient::processDidBecomeUnresponsive):
(WebKit):
(WebKit::WebLoaderClient::interactionOccurredWhileProcessUnresponsive):
* UIProcess/WebLoaderClient.h:
(WebLoaderClient):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::interactionOccurredWhileProcessUnresponsive):
(WebKit):
* UIProcess/WebPageProxy.h:
(WebPageProxy):
* UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::interactionOccurredWhileUnresponsive):
(WebKit):
* UIProcess/WebProcessProxy.h:
(WebProcessProxy):

Tools: Need a client callback for when the user tries to interact with an already unresponsive page
https://bugs.webkit.org/show_bug.cgi?id=84201
<rdar://problem/11140862>

Reviewed by Andreas Kling.

Add new client functions.

* MiniBrowser/mac/BrowserWindowController.m:
(-[BrowserWindowController awakeFromNib]):
* WebKitTestRunner/TestController.cpp:
(WTR::TestController::initialize):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@114451 268f45cc-cd09-0410-ab3c-d52691b4dbfc