Disable range requests if the origin ignores byte-range.

pdf/document_loader.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "pdf/document_loader.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
@@ skipping 365 matching lines @@
   if (headers_var.is_string())
     headers = headers_var.AsString();
 
   std::string boundary = GetMultiPartBoundary(headers);
   if (!boundary.empty()) {
     // Leave position untouched for now, when we read the data we'll get it.
     is_multipart_ = true;
     multipart_boundary_ = boundary;
   } else {
     // Need to make sure that the server returned a byte-range, since it's
-    // possible for a server to just ignore our bye-range request and just
+    // possible for a server to just ignore our byte-range request and just
     // return the entire document even if it supports byte-range requests.
     // i.e. sniff response to
     // http://www.act.org/compass/sample/pdf/geometry.pdf
     current_pos_ = 0;
     uint32_t start_pos, end_pos;
     if (GetByteRange(headers, &start_pos, &end_pos)) {
       current_pos_ = start_pos;
       if (end_pos && end_pos > start_pos)
         current_chunk_size_ = end_pos - start_pos + 1;
+    } else {
+      partial_document_ = false;
     }
   }
 
   ReadMore();
 }
 
 void DocumentLoader::ReadMore() {
   pp::CompletionCallback callback =
         loader_factory_.NewCallback(&DocumentLoader::DidRead);
   int rv = loader_.ReadResponseBody(buffer_, sizeof(buffer_), callback);
@@ skipping 128 matching lines @@
 
 void DocumentLoader::UpdateRendering() {
   if (header_request_)
     client_->OnPartialDocumentLoaded();
   else
     client_->OnPendingRequestComplete();
   header_request_ = false;
 }
 
 }  // namespace chrome_pdf