WebKit2 SPI to disable remote inspection on a WKWebView / WKPage

WebKit2 SPI to disable remote inspection on a WKWebView / WKPage
https://bugs.webkit.org/show_bug.cgi?id=130371

Reviewed by Dan Bernstein.

* Shared/WebPageCreationParameters.h:
* Shared/WebPageCreationParameters.cpp:
(WebKit::WebPageCreationParameters::encode):
(WebKit::WebPageCreationParameters::decode):
Add allowsRemoteInspection bool.

* UIProcess/API/C/WKPagePrivate.h:
* UIProcess/API/C/WKPage.cpp:
(WKPageGetAllowsRemoteInspection):
(WKPageSetAllowsRemoteInspection):
* UIProcess/API/Cocoa/WKWebViewPrivate.h:
* UIProcess/API/Cocoa/WKWebView.mm:
(-[WKWebView _allowsRemoteInspection]):
(-[WKWebView _setAllowsRemoteInspection:]):
Getter and setter for allowing remote inspection state.

* UIProcess/WebPageProxy.h:
(WebKit::WebPageProxy::allowsRemoteInspection):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::WebPageProxy):
(WebKit::WebPageProxy::setAllowsRemoteInspection):
(WebKit::WebPageProxy::creationParameters):
Cached allows remote inspection state, with getter and setter.

* WebProcess/WebPage/WebPage.h:
* WebProcess/WebPage/WebPage.messages.in:
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::setAllowsRemoteInspection):
When setting, call into WebCore to adjust the Page's setting.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@165846 268f45cc-cd09-0410-ab3c-d52691b4dbfc