https://bugs.webkit.org/show_bug.cgi?id=52855

Reviewed by Dan Bernstein.

Source/WebKit2: 

* Shared/WebPageCreationParameters.h: Added canRunModal.

* UIProcess/API/C/WKPage.h: Added a runModal function pointer to
WKPageUIClient. Also removed a lot of redundant typedefs and added
a new one, WKPageCallback, for callbacks without arguments or return
values.

* UIProcess/API/qt/qwkpage.cpp:
(QWKPage::QWKPage): Added a runModal function pointer of 0.

* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::creationParameters): Set canRunModal
based on return value of WebUIClient::canRunModal.

* UIProcess/WebPageProxy.h: Added runModal.
Calls WebUIClient::runModal.

* UIProcess/WebPageProxy.messages.in: Added RunModal message.
Also removed the periods from the phrases in the comments
as Maciej requested a while back.

* UIProcess/WebUIClient.cpp:
(WebKit::WebUIClient::canRunModal): Added. Returns true or false
based on whether a runModal function was supplied in the
WKPageUIClient structure.
(WebKit::WebUIClient::runModal): Added. Calls the runModal
function from the WKPageUIClient structure.
* UIProcess/WebUIClient.h: Declared the above functions.

* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::canRunModal): Call through to WebPage.
(WebKit::WebChromeClient::runModal): Ditto.

* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::WebPage): Initialize m_canRunModal based on the
creation parameters. Initialize m_isRunningModal to false.
(WebKit::WebPage::close): Stop the nested run loop if we are running modal.
(WebKit::WebPage::runModal): Send a message to ask the UI process to run
modal and then start a nested run loop. It gets stopped when the page is closed.
* WebProcess/WebPage/WebPage.h: Defined the canRunModal function
and declared the runModal function.

Tools: 

This fixes WebKitTestRunner to compile, but more work is probably
needed to get it to pass the tests.

* WebKitTestRunner/TestController.cpp:
(WTR::TestController::runModal): Added. Calls through to the
platform-specific version of runModal.
(WTR::TestController::createOtherPage): Changed to be a private
static member function so it can refer to runModal, which is
a private static member function.
(WTR::TestController::initialize): Pass 0 for the runModal
function since we don't need to run the main window modal.
I suspect this is wrong and will need to change.
* WebKitTestRunner/TestController.h: Added declarations for
the functions added above.
* WebKitTestRunner/mac/TestControllerMac.mm:
(WTR::TestController::runModal): Added. Untested implementation.
* WebKitTestRunner/qt/TestControllerQt.cpp:
(WTR::TestController::runModal): Added.
* WebKitTestRunner/win/TestControllerWin.cpp:
(WTR::TestController::runModal): Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76361 268f45cc-cd09-0410-ab3c-d52691b4dbfc