POSIX: Get IPCSyncChannel unittests working

chrome/common/child_process.cc

Index: chrome/common/child_process.cc
diff --git a/chrome/common/child_process.cc b/chrome/common/child_process.cc
index 539d8a33903f8e1cc2561bb3df4af20077f47254..112fceb003b4429264b10d87eda6ce0374e6de7b 100644
--- a/chrome/common/child_process.cc
+++ b/chrome/common/child_process.cc
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <windows.h>
-
 #include "chrome/common/child_process.h"
 
 #include "base/atomic_ref_count.h"
@@ -81,8 +79,12 @@ bool ChildProcess::GlobalInit(const std::wstring &channel_name,
 
   CommandLine command_line;
   if (command_line.HasSwitch(switches::kUserAgent)) {
+#if defined(OS_WIN)
+    // TODO(port): calling this connects an, otherwise disconnected, subgraph
+    // of symbols, causing huge numbers of linker errors.
     webkit_glue::SetUserAgent(WideToUTF8(
         command_line.GetSwitchValue(switches::kUserAgent)));
+#endif
   }
 
   return true;