Progress towards CMake on Mac.

Progress towards CMake on Mac.
https://bugs.webkit.org/show_bug.cgi?id=143112

Patch by Alex Christensen <achristensen@webkit.org> on 2015-03-26
Reviewed by Chris Dumez.

.:

* Source/cmake/OptionsMac.cmake:

Source/WebCore:

* CMakeLists.txt:
* PlatformEfl.cmake:
* PlatformGTK.cmake:
* PlatformMac.cmake:
* platform/graphics/mac/IconMac.mm:

Source/WebKit:

* PlatformMac.cmake:

Source/WebKit/mac:

* WebCoreSupport/WebFrameLoaderClient.h:

Source/WebKit2:

* CMakeLists.txt:
* PlatformMac.cmake:
* UIProcess/Cocoa/WebPageProxyCocoa.mm:

Source/WTF:

* wtf/PlatformMac.cmake:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@182032 268f45cc-cd09-0410-ab3c-d52691b4dbfc