pdfviewer: load files with missing xref (we need in order to help with testing, as most good pdfx i…

experimental/PdfViewer/pdfparser/native/SkPdfObject.h

Index: experimental/PdfViewer/pdfparser/native/SkPdfObject.h
===================================================================
--- experimental/PdfViewer/pdfparser/native/SkPdfObject.h	(revision 10419)
+++ experimental/PdfViewer/pdfparser/native/SkPdfObject.h	(working copy)
@@ -527,6 +527,22 @@
         return fObjectType == kKeyword_PdfObjectType;
     }
 
+    bool isKeyword(const char* keyword) const {
+        if (!isKeyword()) {
+            return false;
+        }
+
+        if (strlen(keyword) != fStr.fBytes) {
+            return false;
+        }
+
+        if (strncmp(keyword, (const char*)fStr.fBuffer, fStr.fBytes) != 0) {
+            return false;
+        }
+
+        return true;
+    }
+
     bool isName() const {
         return fObjectType == kName_PdfObjectType;
     }