Remove deprecated method for accessing a gtk widgets window.

Fix a debug build compiler warning.

Source/Core/Core/Src/HW/WiimoteEmu/WiimoteEmu.cpp

@@ -41,6 +41,13 @@ inline double round(double x) { return (x-floor(x))>0.5 ? ceil(x) : floor(x); }
 
 #include "../../Movie.h"
 
+namespace
+{
+// :)
+auto const TAU = 6.28318530717958647692;
+auto const PI = TAU / 2.0;
+}
+
 namespace WiimoteEmu
 {
 

Source/Core/Core/Src/HW/WiimoteEmu/WiimoteEmu.h

@@ -30,13 +30,6 @@
 #include <vector>
 #include <queue>
 
-namespace
-{
-// :)
-auto const TAU = 6.28318530717958647692;
-auto const PI = TAU / 2.0;
-}
-
 // Registry sizes 
 #define WIIMOTE_EEPROM_SIZE			(16*1024)
 #define WIIMOTE_EEPROM_FREE_SIZE	0x1700

Source/Core/DolphinWX/Src/X11Utils.cpp

@@ -124,12 +124,12 @@ void EWMH_Fullscreen(Display *dpy, int action)
 #if defined(HAVE_WX) && HAVE_WX
 Window XWindowFromHandle(void *Handle)
 {
-	return GDK_WINDOW_XID(GTK_WIDGET(Handle)->window);
+	return GDK_WINDOW_XID(gtk_widget_get_window(GTK_WIDGET(Handle)));
 }
 
 Display *XDisplayFromHandle(void *Handle)
 {
-	return GDK_WINDOW_XDISPLAY(GTK_WIDGET(Handle)->window);
+	return GDK_WINDOW_XDISPLAY(gtk_widget_get_window(GTK_WIDGET(Handle)));
 }
 #endif