avoid char+'\xHH' as it's too easy to use values > 127

net/dns/mock_mdns_socket_factory.cc

 // Copyright 2013 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 <algorithm>
 
 #include "net/base/net_errors.h"
 #include "net/dns/mock_mdns_socket_factory.h"
 
 using testing::_;
@@ skipping 66 matching lines @@
           &MockMDnsSocketFactory::SendToInternal));
 
   ON_CALL(*new_socket, RecvFrom(_, _, _, _))
       .WillByDefault(Invoke(
           this,
           &MockMDnsSocketFactory::RecvFromInternal));
 
   return new_socket.PassAs<DatagramServerSocket>();
 }
 
-void MockMDnsSocketFactory::SimulateReceive(const char* packet, int size) {
+void MockMDnsSocketFactory::SimulateReceive(const uint8* packet, int size) {
   DCHECK(recv_buffer_size_ >= size);
   DCHECK(recv_buffer_.get());
   DCHECK(!recv_callback_.is_null());
 
   memcpy(recv_buffer_->data(), packet, size);
   CompletionCallback recv_callback = recv_callback_;
   recv_callback_.Reset();
   recv_callback.Run(size);
 }
 
 int MockMDnsSocketFactory::RecvFromInternal(
     IOBuffer* buffer, int size,
     IPEndPoint* address,
     const CompletionCallback& callback) {
     recv_buffer_ = buffer;
     recv_buffer_size_ = size;
     recv_callback_ = callback;
     return ERR_IO_PENDING;
 }
 
 int MockMDnsSocketFactory::SendToInternal(
     const std::string& packet, const std::string& address,
     const CompletionCallback& callback) {
   OnSendTo(packet);
   return packet.size();
 }
 
 }  // namespace net