REGRESSION(r95679): It broke everything.

REGRESSION(r95679): It broke everything.
https://bugs.webkit.org/show_bug.cgi?id=68611

Unreviewed rolling out r95679 and r95690, because it broke everything.

* UIProcess/API/mac/WKView.mm:
(maybeCreateSandboxExtensionFromPasteboard):
(-[WKView performDragOperation:]):
* UIProcess/WebContext.cpp:
(WebKit::WebContext::didPerformClientRedirect):
(WebKit::WebContext::didPerformServerRedirect):
(WebKit::WebContext::didUpdateHistoryTitle):
(WebKit::WebContext::getPluginPath):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::reattachToWebProcessWithItem):
(WebKit::WebPageProxy::initializeSandboxExtensionHandle):
(WebKit::WebPageProxy::loadURL):
(WebKit::WebPageProxy::loadURLRequest):
(WebKit::WebPageProxy::loadHTMLString):
(WebKit::WebPageProxy::loadAlternateHTMLString):
(WebKit::WebPageProxy::goForward):
(WebKit::WebPageProxy::goBack):
(WebKit::WebPageProxy::goToBackForwardItem):
(WebKit::WebPageProxy::didStartProvisionalLoadForFrame):
(WebKit::WebPageProxy::didReceiveServerRedirectForProvisionalLoadForFrame):
(WebKit::WebPageProxy::didSameDocumentNavigationForFrame):
(WebKit::WebPageProxy::decidePolicyForNavigationAction):
(WebKit::WebPageProxy::decidePolicyForNewWindowAction):
(WebKit::WebPageProxy::decidePolicyForResponse):
(WebKit::WebPageProxy::didInitiateLoadForResource):
(WebKit::WebPageProxy::didSendRequestForResource):
(WebKit::WebPageProxy::didReceiveResponseForResource):
(WebKit::WebPageProxy::missingPluginButtonClicked):
* UIProcess/WebPageProxy.h:
* UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::WebProcessProxy):
(WebKit::WebProcessProxy::addBackForwardItem):
* UIProcess/WebProcessProxy.h:
* UIProcess/cf/WebPageProxyCF.cpp:
(WebKit::WebPageProxy::restoreFromSessionStateData):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95708 268f45cc-cd09-0410-ab3c-d52691b4dbfc