Fix for PDFs with lots of named destinations take a long time to load.

pdf/pdfium/pdfium_engine.cc

Index: pdf/pdfium/pdfium_engine.cc
diff --git a/pdf/pdfium/pdfium_engine.cc b/pdf/pdfium/pdfium_engine.cc
index 51e5676e92085951edd10adf68d2f94bbb07e4ed..b179e1efbc5397921c6f42183a51a4f4f967e78b 100644
--- a/pdf/pdfium/pdfium_engine.cc
+++ b/pdf/pdfium/pdfium_engine.cc
@@ -2389,33 +2389,6 @@ int PDFiumEngine::GetNamedDestinationPage(const std::string& destination) {
   return dest ? FPDFDest_GetPageIndex(doc_, dest) : -1;
 }
 
-pp::VarDictionary PDFiumEngine::GetNamedDestinations() {
-  pp::VarDictionary named_destinations;
-  for (unsigned long i = 0; i < FPDF_CountNamedDests(doc_); i++) {
-    base::string16 name;
-    long buffer_bytes;
-    FPDF_GetNamedDest(doc_, i, NULL, buffer_bytes);
-    size_t name_length = base::checked_cast<size_t>(buffer_bytes) /
-        sizeof(base::string16::value_type);
-    if (name_length > 0) {
-      PDFiumAPIStringBufferAdapter<base::string16> api_string_adapter(
-          &name, name_length, true);
-      FPDF_DEST dest = FPDF_GetNamedDest(doc_, i, api_string_adapter.GetData(),
-                                         buffer_bytes);
-      api_string_adapter.Close(name_length);
-      if (dest) {
-        std::string named_dest = base::UTF16ToUTF8(name);
-        int page_number = GetNamedDestinationPage(named_dest);
-        if (page_number >= 0) {
-          named_destinations.Set(pp::Var(named_dest.c_str()),
-                                 pp::Var(page_number));
-        }
-      }
-    }
-  }
-  return named_destinations;
-}
-
 int PDFiumEngine::GetFirstVisiblePage() {
   CalculateVisiblePages();
   return first_visible_page_;