Fix loading PDFs with no HTTP response headers in OOP PDF

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 "base/logging.h"
 #include "base/strings/string_util.h"
 #include "net/http/http_util.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 61 matching lines @@
         disposition = it.values();
       }
     }
   }
   if (!type.empty() &&
       !EndsWith(type, "/pdf", false) &&
       !EndsWith(type, ".pdf", false) &&
       !EndsWith(type, "/x-pdf", false) &&
       !EndsWith(type, "/*", false) &&
       !EndsWith(type, "/acrobat", false) &&
-      !EndsWith(type, "/unknown", false) &&
-      !StartsWithASCII(url, "blob:", false)) {
+      !EndsWith(type, "/unknown", false)) {
     return false;
   }
   if (StartsWithASCII(disposition, "attachment", false)) {
     return false;
   }
 
   if (content_length > 0)
     chunk_stream_.Preallocate(content_length);
 
   document_size_ = content_length;
@@ skipping 402 matching lines @@
 uint32 DocumentLoader::GetRequestSize() const {
   // Document loading strategy:
   // For first 10 requests, we use 32k chunk sizes, for the next 10 requests we
   // double the size (64k), and so on, until we cap max request size at 2M for
   // 71 or more requests.
   uint32 limited_count = std::min(std::max(requests_count_, 10u), 70u);
   return 32*1024 * (1 << ((limited_count - 1) / 10u));
 }
 
 }  // namespace chrome_pdf