move all O3D specific command buffer stuff to command_buffer::o3d...

command_buffer/service/win/d3d9/effect_d3d9.cc

Index: command_buffer/service/win/d3d9/effect_d3d9.cc
===================================================================
--- command_buffer/service/win/d3d9/effect_d3d9.cc	(revision 30103)
+++ command_buffer/service/win/d3d9/effect_d3d9.cc	(working copy)
@@ -46,6 +46,7 @@
 
 namespace o3d {
 namespace command_buffer {
+namespace o3d {
 
 // Logs the D3D effect error, from either the buffer, or GetLastError().
 static void LogFXError(LPD3DXBUFFER error_buffer) {
@@ -673,5 +674,6 @@
   return current_effect_->Begin();
 }
 
+}  // namespace o3d
 }  // namespace command_buffer
 }  // namespace o3d