[WORK_IN_PROGRESS] PDF::Save() fix for out-of-process-pdf.

ppapi/proxy/pdf_resource.cc

Index: ppapi/proxy/pdf_resource.cc
diff --git a/ppapi/proxy/pdf_resource.cc b/ppapi/proxy/pdf_resource.cc
index 1398866e924e419b2a37cfd953024fddd6333d7b..7f085b1105dc40400530d23803e784f7509daf02 100644
--- a/ppapi/proxy/pdf_resource.cc
+++ b/ppapi/proxy/pdf_resource.cc
@@ -141,8 +141,15 @@ void PDFResource::Print() {
   Post(RENDERER, PpapiHostMsg_PDF_Print());
 }
 
-void PDFResource::SaveAs() {
-  Post(RENDERER, PpapiHostMsg_PDF_SaveAs());
+void PDFResource::SaveAs(const PP_Var& url) {
+  printf("PDFResource::SaveAs() would send PpapiHostMsg_PDF_SaveAs()\n");
+  scoped_refptr<ppapi::StringVar> url_str(
+      ppapi::StringVar::FromPPVar(url));
+  std::string url_to_use;
+  if (url_str.get()) {
+    url_to_use = url_str->value();
+  }
+  Post(RENDERER, PpapiHostMsg_PDF_SaveAs(url_to_use));
 }
 
 PP_Bool PDFResource::IsFeatureEnabled(PP_PDFFeature feature) {