Make SharedMemoryHandle a class on windows.

ipc/ipc_channel_win.cc

 // Copyright (c) 2012 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 "ipc/ipc_channel_win.h"
 
 #include <stdint.h>
 #include <windows.h>
 
 #include "base/auto_reset.h"
@@ skipping 553 matching lines @@
   }
 }
 
 //------------------------------------------------------------------------------
 // Channel's methods
 
 // static
 scoped_ptr<Channel> Channel::Create(const IPC::ChannelHandle& channel_handle,
                                     Mode mode,
                                     Listener* listener) {
-  return scoped_ptr<Channel>(
-      new ChannelWin(channel_handle, mode, listener));
+  return scoped_ptr<Channel>(new ChannelWin(channel_handle, mode, listener));
 }
 
 // static
 bool Channel::IsNamedServerInitialized(const std::string& channel_id) {
   return ChannelWin::IsNamedServerInitialized(channel_id);
 }
 
 // static
 std::string Channel::GenerateVerifiedChannelID(const std::string& prefix) {
   // Windows pipes can be enumerated by low-privileged processes. So, we
   // append a strong random value after the \ character. This value is not
   // included in the pipe name, but sent as part of the client hello, to
   // hijacking the pipe name to spoof the client.
 
   std::string id = prefix;
   if (!id.empty())
     id.append(".");
 
   int secret;
   do {  // Guarantee we get a non-zero value.
     secret = base::RandInt(0, std::numeric_limits<int>::max());
   } while (secret == 0);
 
   id.append(GenerateUniqueRandomChannelID());
   return id.append(base::StringPrintf("\\%d", secret));
 }
 
 }  // namespace IPC