Move closeWindow()/setFullscreen()/setVSynv() from SkWindow to SkOSWindow

include/views/SkWindow.h

Index: include/views/SkWindow.h
diff --git a/include/views/SkWindow.h b/include/views/SkWindow.h
index 0ae0a7efc464baf24096af3bd2ff48e55e1f1246..602c1c2076dd01e9dcc7b8c53ffef73b9d8a04bd 100644
--- a/include/views/SkWindow.h
+++ b/include/views/SkWindow.h
@@ -80,10 +80,6 @@ public:
     virtual void onPDFSaved(const char title[], const char desc[],
         const char path[]) {}
 
-    virtual void setFullscreen(bool) {}
-    virtual void setVsync(bool) {}
-    virtual void closeWindow() {}
-
 protected:
     virtual bool onEvent(const SkEvent&);
     virtual bool onDispatchClick(int x, int y, Click::State, void* owner, unsigned modi);