Put some stuff in the gfx plugins into namespaces, so that the symbols won't collide if someone decides to merge the gfx plugins into dolphin too. still more things left to do though.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6972 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoDX9/Src/PixelShaderCache.h

@@ -15,8 +15,7 @@
 // Official SVN repository and contact information can be found at
 // http://code.google.com/p/dolphin-emu/
 
-#ifndef _PIXELSHADERCACHE_H
-#define _PIXELSHADERCACHE_H
+#pragma once
 
 #include "Common.h"
 #include "LinearDiskCache.h"
@@ -27,6 +26,9 @@
 #include "PixelShaderGen.h"
 #include "VertexShaderGen.h"
 
+namespace DX9
+{
+
 typedef u32 tevhash;
 
 tevhash GetCurrentTEV();
@@ -68,5 +70,4 @@ public:
 	static LPDIRECT3DPIXELSHADER9 ReinterpRGB8ToRGBA6();
 };
 
-
-#endif  // _PIXELSHADERCACHE_H
+}  // namespace DX9