Report unreadable files as size zero when uploading.

net/base/upload_data_stream_unittest.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 "net/base/upload_data_stream.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 60 matching lines @@
 
   scoped_ptr<UploadDataStream> stream(
       UploadDataStream::Create(upload_data_, NULL));
   ASSERT_TRUE(stream.get());
   EXPECT_FALSE(stream->eof());
   uint64 read_counter = 0;
   while (!stream->eof()) {
     read_counter += stream->buf_len();
     stream->DidConsume(stream->buf_len());
   }
-  EXPECT_LT(read_counter, stream->size());
+  // UpdateDataStream will pad out the file with 0 bytes so that the HTTP
+  // transaction doesn't hang.  Therefore we expected the full size.
+  EXPECT_EQ(read_counter, stream->size());
 
   file_util::Delete(temp_file_path, false);
 }
 
 void UploadDataStreamTest::FileChangedHelper(const FilePath& file_path,
                                              const base::Time& time,
                                              bool error_expected) {
   std::vector<UploadData::Element> elements;
   UploadData::Element element;
   element.SetToFilePathRange(file_path, 1, 2, time);
@@ skipping 24 matching lines @@
   // Test file changed.
   FileChangedHelper(temp_file_path,
                     file_info.last_modified - base::TimeDelta::FromSeconds(1),
                     true);
 
   file_util::Delete(temp_file_path, false);
 }
 
 }  // namespace net