Renames "dx9" utility namespace to "d3d9"

TRAC #22208

Author: Shannon Woods
Signed-off-by: Geoff Lang
Signed-off-by: Daniel Koch

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1591 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/renderer9_utils.cpp b/src/libGLESv2/renderer/renderer9_utils.cpp
index fa63904..3474f08 100644
--- a/src/libGLESv2/renderer/renderer9_utils.cpp
+++ b/src/libGLESv2/renderer/renderer9_utils.cpp
@@ -448,7 +448,7 @@
 
 }
 
-namespace dx
+namespace d3d9
 {
 
 bool IsCompressedFormat(D3DFORMAT surfaceFormat)