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/libEGL/Surface.cpp b/src/libEGL/Surface.cpp
index c79b9a2..251632d 100644
--- a/src/libEGL/Surface.cpp
+++ b/src/libEGL/Surface.cpp
@@ -347,7 +347,7 @@
     return mPostSubBufferSupported;
 }
 
-renderer::SwapChain *Surface::getSwapChain() const
+rx::SwapChain *Surface::getSwapChain() const
 {
     return mSwapChain;
 }