Add function to document_loader to get PDF as pp::FileRef

pdf/document_loader.h

Index: pdf/document_loader.h
diff --git a/pdf/document_loader.h b/pdf/document_loader.h
index c09dba2ddda443b763e27ec3753428c88b1aabb4..152379b5c79c820590f1ebc10e87a9d57b66f49b 100644
--- a/pdf/document_loader.h
+++ b/pdf/document_loader.h
@@ -11,11 +11,16 @@
 
 #include "base/basictypes.h"
 #include "pdf/chunk_stream.h"
+#include "pdf/file_writer.h"
 #include "ppapi/cpp/url_loader.h"
 #include "ppapi/utility/completion_callback_factory.h"
 
 #define kDefaultRequestSize 32768u
 
+namespace pp {
+class Buffer_Dev;
+}
+
 namespace chrome_pdf {
 
 class DocumentLoader {
@@ -57,6 +62,9 @@ class DocumentLoader {
   bool IsDocumentComplete() const;
   uint32 document_size() const { return document_size_; }
 
+  void GetCompleteDocument(
+       pp::CompletionCallbackWithOutput<pp::FileRef> callback);
+
   // Return number of bytes available.
   uint32 GetAvailableData() const;
 
@@ -117,6 +125,7 @@ class DocumentLoader {
   std::string multipart_boundary_;
   uint32 requests_count_;
   std::list<std::vector<unsigned char> > chunk_buffer_;
+  scoped_ptr<FileWriter> file_writer_;
 };
 
 }  // namespace chrome_pdf