Rename renderer namespace to rx

Trac #21999
Author: Shannon Woods
Signed-off-by: Daniel Koch

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1379 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/SwapChain.cpp b/src/libGLESv2/renderer/SwapChain.cpp
index c2f6136..8f1ed98 100644
--- a/src/libGLESv2/renderer/SwapChain.cpp
+++ b/src/libGLESv2/renderer/SwapChain.cpp
@@ -15,7 +15,7 @@
 #include "libGLESv2/renderer/Renderer9.h"   // D3D9_REPLACE
 #include "libGLESv2/Context.h"
 
-namespace renderer
+namespace rx
 {
 
 SwapChain::SwapChain(Renderer9 *renderer, HWND window, HANDLE shareHandle,