Remove SimplePDFPlugin
https://bugs.webkit.org/show_bug.cgi?id=119437

Reviewed by Alexey Proskuryakov.

* UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::getPlugins):
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::createPlugin):
Don't add SimplePDFPlugin, nor try to instantiate it.

* WebProcess/Plugins/PDF/PDFPlugin.h:
* WebProcess/Plugins/PDF/PDFPlugin.mm:
Merge previously inherited behavior in from SimplePDFPlugin.

* WebKit2.xcodeproj/project.pbxproj:
* WebProcess/Plugins/PDF/SimplePDFPlugin.h: Removed.
* WebProcess/Plugins/PDF/SimplePDFPlugin.mm: Removed.
Remove SimplePDFPlugin.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153693 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed, build and style fix for r153693.

* UIProcess/WebProcessProxy.cpp:
* WebProcess/Plugins/PDF/PDFPlugin.h:
* WebProcess/WebPage/WebPage.cpp:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153694 268f45cc-cd09-0410-ab3c-d52691b4dbfc