User agent string override for navigator.userAgent should be site specific quirks

User agent string override for navigator.userAgent should be site specific quirks
https://bugs.webkit.org/show_bug.cgi?id=193950

Reviewed by Brent Fulgham.

Source/WebCore:

In order to make it possible to toggle the UA string override just for navigator.userAgent via Web Inspector,
we need to put this override behind the site specific quirks. Because WebInspector overrides Page's setting
without updating WKPreferences, there is no way for WKWebView client's to know whether the site specific quirks
had been disabled or not.

* loader/DocumentLoader.h:
(WebCore::DocumentLoader::setCustomJavaScriptUserAgentAsSiteSpecificQuirks):
(WebCore::DocumentLoader::customJavaScriptUserAgentAsSiteSpecificQuirks const):
(WebCore::DocumentLoader::setCustomJavaScriptUserAgent): Deleted.
(WebCore::DocumentLoader::customJavaScriptUserAgent const): Deleted.
* loader/FrameLoader.cpp:
(WebCore::FrameLoader::userAgentForJavaScript const):

Source/WebKit:

Renamed the various member variables, functions, properties and selectors.

* Shared/WebsitePoliciesData.cpp:
(WebKit::WebsitePoliciesData::encode const):
(WebKit::WebsitePoliciesData::decode):
(WebKit::WebsitePoliciesData::applyToDocumentLoader):
* Shared/WebsitePoliciesData.h:
* UIProcess/API/APIWebsitePolicies.cpp:
(API::WebsitePolicies::data):
* UIProcess/API/APIWebsitePolicies.h:
* UIProcess/API/Cocoa/_WKWebsitePolicies.h:
* UIProcess/API/Cocoa/_WKWebsitePolicies.mm:
(-[_WKWebsitePolicies setCustomJavaScriptUserAgentAsSiteSpecificQuirks:]): Renamed from setCustomJavaScriptUserAgent.
(-[_WKWebsitePolicies customJavaScriptUserAgentAsSiteSpecificQuirks]): Renamed from customJavaScriptUserAgent.

Tools:

Updated per the _WKWebsitePolicies rename.

* TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm:
(-[CustomJavaScriptUserAgentDelegate _webView:decidePolicyForNavigationAction:userInfo:decisionHandler:]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@240646 268f45cc-cd09-0410-ab3c-d52691b4dbfc