ppapi_proxy: Support loading and reading urls. Proxy URLLoader....

src/shared/ppapi_proxy/browser_globals.h

Index: src/shared/ppapi_proxy/browser_globals.h
===================================================================
--- src/shared/ppapi_proxy/browser_globals.h	(revision 4116)
+++ src/shared/ppapi_proxy/browser_globals.h	(working copy)
@@ -14,6 +14,7 @@
 #include "ppapi/c/ppb_graphics_2d.h"
 #include "ppapi/c/ppb_image_data.h"
 #include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/ppb_url_loader.h"
 #include "ppapi/c/ppb_url_request_info.h"
 #include "ppapi/c/ppb_url_response_info.h"
 
@@ -67,6 +68,7 @@
 const PPB_ImageData* PPBImageDataInterface();
 const PPB_ImageDataTrusted* PPBImageDataTrustedInterface();
 const PPB_Instance* PPBInstanceInterface();
+const PPB_URLLoader* PPBURLLoaderInterface();
 const PPB_URLRequestInfo* PPBURLRequestInfoInterface();
 const PPB_URLResponseInfo* PPBURLResponseInfoInterface();
 const PPB_Var_Deprecated* PPBVarInterface();  // shared