https://bugs.webkit.org/show_bug.cgi?id=31350

Reviewed by Eric Seidel.

Inherits the following classes from Noncopyable because these are instantiated
by 'new' and these are no need to be copyable:

class DragController         - instantiated at: WebCore/page/Page.cpp:107
class FocusController        - instantiated at: WebCore/page/Page.cpp:109
class Settings               - instantiated at: WebCore/page/Page.cpp:116
class PluginHalter           - instantiated at: WebCore/page/Page.cpp:160
struct ScheduledEvent        - instantiated at: WebCore/page/FrameView.cpp:1275
class UserScript             - instantiated at: WebCore/page/PageGroup.cpp:208
struct EventHandlerDragState - instantiated at: WebCore/page/EventHandler.cpp:182
class XSSAuditor             - instantiated at: WebCore/bindings/js/ScriptController.cpp:70
class UserStyleSheet         - instantiated at: WebCore/page/PageGroup.cpp:222

Inherits PropertyWrapperBase cl...