Convert URLLoader to the new proxy design

ppapi/thunk/thunk.h

Index: ppapi/thunk/thunk.h
diff --git a/ppapi/thunk/thunk.h b/ppapi/thunk/thunk.h
index 3fbe66576d77ea9079a0d1328096d48a7ec4addc..d8c9b1b4a03589bf47fd3167b1e992d9fcc07810 100644
--- a/ppapi/thunk/thunk.h
+++ b/ppapi/thunk/thunk.h
@@ -21,7 +21,6 @@
 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
 #include "ppapi/c/trusted/ppb_graphics_3d_trusted.h"
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
-#include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 // Declares a getter for the interface thunk of the form:
@@ -72,8 +71,6 @@ PPAPI_THUNK_EXPORT const PPB_TCPSocket_Private_0_3*
     GetPPB_TCPSocket_Private_0_3_Thunk();
 PPAPI_THUNK_EXPORT const PPB_UDPSocket_Private_0_2*
     GetPPB_UDPSocket_Private_0_2_Thunk();
-PPAPI_THUNK_EXPORT const PPB_URLLoaderTrusted_0_3*
-    GetPPB_URLLoaderTrusted_0_3_Thunk();
 PPAPI_THUNK_EXPORT const PPB_WebSocket_1_0*
     GetPPB_WebSocket_1_0_Thunk();