Leave CreateStreamTexture route id out of the GL interface.

ppapi/proxy/ppapi_command_buffer_proxy.cc

Index: ppapi/proxy/ppapi_command_buffer_proxy.cc
diff --git a/ppapi/proxy/ppapi_command_buffer_proxy.cc b/ppapi/proxy/ppapi_command_buffer_proxy.cc
index 789bb63d83776755ead8a3a102e09b0899c780ee..f999b733a43cc27b8e53cc3cde4acd8f2591c3ed 100644
--- a/ppapi/proxy/ppapi_command_buffer_proxy.cc
+++ b/ppapi/proxy/ppapi_command_buffer_proxy.cc
@@ -170,11 +170,6 @@ void PpapiCommandBufferProxy::DestroyTransferBuffer(int32 id) {
       ppapi::API_ID_PPB_GRAPHICS_3D, resource_, id));
 }
 
-uint32 PpapiCommandBufferProxy::CreateStreamTexture(uint32 texture_id) {
-  NOTREACHED();
-  return 0;
-}
-
 void PpapiCommandBufferProxy::SetLock(base::Lock*) {
   NOTIMPLEMENTED();
 }