Hook up ProfileIOData's URLRequestContext to a NetworkService.

content/public/common/resource_request.cc

Index: content/public/common/resource_request.cc
diff --git a/content/public/common/resource_request.cc b/content/public/common/resource_request.cc
index f851f82fb10b76872f11959a7f7a431a5608aede..2672e5b2595efeb07acaa01e001b8d5c676fa4bd 100644
--- a/content/public/common/resource_request.cc
+++ b/content/public/common/resource_request.cc
@@ -4,9 +4,13 @@
 
 #include "content/public/common/resource_request.h"
 
+#include "content/public/common/appcache_info.h"
+
 namespace content {
 
-ResourceRequest::ResourceRequest() {}
+// kAppCacheNoHostId can't be used in the header, because appcache_info.h
+// includes a webkit file with a Status enum, and X11 #defines Status.
+ResourceRequest::ResourceRequest() : appcache_host_id(kAppCacheNoHostId) {}
 ResourceRequest::ResourceRequest(const ResourceRequest& request) = default;
 ResourceRequest::~ResourceRequest() {}