Record the PDF and top level URL when the PDF plugin crashes.

ppapi/cpp/private/pdf.h

Index: ppapi/cpp/private/pdf.h
diff --git a/ppapi/cpp/private/pdf.h b/ppapi/cpp/private/pdf.h
index 3cd7aeb3911ed8b923b6324500405f3591987e1f..324ae7f17a107cbf927b8951c6452dba794daa3f 100644
--- a/ppapi/cpp/private/pdf.h
+++ b/ppapi/cpp/private/pdf.h
@@ -69,6 +69,9 @@ class PDF {
       PP_PrivateAccessibilityPageInfo* page_info,
       PP_PrivateAccessibilityTextRunInfo text_runs[],
       PP_PrivateAccessibilityCharInfo chars[]);
+  static void SetCrashData(const InstanceHandle& instance,
+                           const char* pdf_url,
+                           const char* embedder_url);
 };
 
 }  // namespace pp