Reviewed by Adam.

    Reviewed by Adam.

        Fixed <rdar://5549689> 2 tests in fast/forms fail when run with other tests on Windows

        Moving destructor into platform-specific files
        * DumpRenderTree/LayoutTestController.cpp:
        * DumpRenderTree/mac/LayoutTestControllerMac.mm:
        (LayoutTestController::~LayoutTestController):
        * DumpRenderTree/qt/jsobjects.cpp:
        (LayoutTestController::~LayoutTestController):

        LayoutTestController wasn't being destroyed
        * DumpRenderTree/win/DumpRenderTree.cpp:
        (runTest):

        Added declspec
        * DumpRenderTree/win/EditingDelegate.h:

        Reset certain values on the webview (or related delegate) that might
        have changed while running a test
        * DumpRenderTree/win/LayoutTestControllerWin.cpp:
        (LayoutTestController::~LayoutTestController):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27084 268f45cc-cd09-0410-ab3c-d52691b4dbfc