Handle webuis when using the network service.

third_party/zlib/google/compression_utils.cc

 // Copyright 2014 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 "third_party/zlib/google/compression_utils.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 
@@ skipping 96 matching lines @@
     if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
       return Z_DATA_ERROR;
     return err;
   }
   *dest_length = stream.total_out;
 
   err = inflateEnd(&stream);
   return err;
 }
 
-// Returns the uncompressed size from GZIP-compressed |compressed_data|.
-uint32_t GetUncompressedSize(const std::string& compressed_data) {
-  // The uncompressed size is stored in the last 4 bytes of |input| in LE.
-  uint32_t size;
-  if (compressed_data.length() < sizeof(size))
-    return 0;
-  memcpy(&size, &compressed_data[compressed_data.length() - sizeof(size)],
-         sizeof(size));
-  return base::ByteSwapToLE32(size);
-}
-
 }  // namespace
 
 namespace compression {
 
 bool GzipCompress(const std::string& input, std::string* output) {
   const uLongf input_size = static_cast<uLongf>(input.size());
   std::vector<Bytef> compressed_data(kGzipZlibHeaderDifferenceBytes +
                                      compressBound(input_size));
 
   uLongf compressed_size = static_cast<uLongf>(compressed_data.size());
@@ skipping 17 matching lines @@
   if (GzipUncompressHelper(bit_cast<Bytef*>(uncompressed_output.data()),
                            &uncompressed_size,
                            bit_cast<const Bytef*>(input.data()),
                            static_cast<uLongf>(input.length())) == Z_OK) {
     output->swap(uncompressed_output);
     return true;
   }
   return false;
 }
 
+bool GzipUncompress(base::StringPiece input, base::StringPiece output) {
+  uLongf uncompressed_size = GetUncompressedSize(input);
+  if (uncompressed_size > output.size())
+    return false;
+  return GzipUncompressHelper(bit_cast<Bytef*>(output.data()),
+                              &uncompressed_size,
+                              bit_cast<const Bytef*>(input.data()),
+                              static_cast<uLongf>(input.length())) == Z_OK;
+}
+
+uint32_t GetUncompressedSize(base::StringPiece compressed_data) {
+  // The uncompressed size is stored in the last 4 bytes of |input| in LE.
+  uint32_t size;
+  if (compressed_data.length() < sizeof(size))
+    return 0;
+  memcpy(&size,
+         &compressed_data.data()[compressed_data.length() - sizeof(size)],
+         sizeof(size));
+  return base::ByteSwapToLE32(size);
+}
+
 }  // namespace compression