Frame and Navigator shouldn't need to worry about Geolocation

Frame and Navigator shouldn't need to worry about Geolocation
https://bugs.webkit.org/show_bug.cgi?id=78860

Reviewed by Eric Seidel.

This patch removes some Geolocation-specific code from Frame and
Navigator in favor of our new supplemental module mechanism.  We're
still refining the module system, but we seem to be converging on a
simple Observer/Supplement design.

In a future patch, I'll move the remaining Geolocation-related files in
WebCore into Modules/geolocation.  This patch appears to be the first
patch that introduces a module used by all the various build systems,
which is why there's a bit more build system overhead than usual.

* Modules/geolocation: Added.
* Modules/geolocation/NavigatorGeolocation.cpp: Added.
(WebCore):
(WebCore::NavigatorGeolocation::NavigatorGeolocation):
(WebCore::NavigatorGeolocation::~NavigatorGeolocation):
(WebCore::NavigatorGeolocation::pageDestroyed):
(WebCore::NavigatorGeolocation::from):
(WebCore::NavigatorGeolocation::geolocation):
* Modules/geolocation/NavigatorGeolocation.h: Added.
(WebCore):
(NavigatorGeolocation):
* Modules/geolocation/NavigatorGeolocation.idl: Added.
    - I've temporarily disabled this API for GObject because it generates
      a strange compile error.  Once I land this patch, I'll spend some
      more time fixing the compile error.
* page/DOMWindow.cpp:
(WebCore):
* page/DOMWindow.h:
(DOMWindow):
* page/Frame.cpp:
(WebCore::Frame::pageDestroyed):
(WebCore::Frame::transferChildFrameToNewDocument):
* page/FrameDestructionObserver.cpp:
(WebCore::FrameDestructionObserver::pageDestroyed):
(WebCore):
* page/FrameDestructionObserver.h:
(FrameDestructionObserver):
* page/Navigator.cpp:
(WebCore):
* page/Navigator.h:
(WebCore):
(Navigator):
* page/Navigator.idl:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@108428 268f45cc-cd09-0410-ab3c-d52691b4dbfc