PDF: Use chrome.resourcesPrivate instead of Pepper to display translated strings

ppapi/thunk/ppb_pdf_thunk.cc

Index: ppapi/thunk/ppb_pdf_thunk.cc
diff --git a/ppapi/thunk/ppb_pdf_thunk.cc b/ppapi/thunk/ppb_pdf_thunk.cc
index 05c397ce8f9f708bdb51ab2b7c1a60c7424a351a..8c447840018c116353476c07e734c0963b8ded5b 100644
--- a/ppapi/thunk/ppb_pdf_thunk.cc
+++ b/ppapi/thunk/ppb_pdf_thunk.cc
@@ -16,13 +16,6 @@ namespace thunk {
 
 namespace {
 
-PP_Var GetLocalizedString(PP_Instance instance, PP_ResourceString string_id) {
-  EnterInstanceAPI<PPB_PDF_API> enter(instance);
-  if (enter.failed())
-    return PP_MakeUndefined();
-  return enter.functions()->GetLocalizedString(string_id);
-}
-
 PP_Resource GetFontFileWithFallback(
     PP_Instance instance,
     const PP_BrowserFont_Trusted_Description* description,
@@ -137,7 +130,6 @@ void GetV8ExternalSnapshotData(PP_Instance instance,
 }
 
 const PPB_PDF g_ppb_pdf_thunk = {
-  &GetLocalizedString,
   &GetFontFileWithFallback,
   &GetFontTableForPrivateFontFile,
   &SearchString,