Create a content::ResourceContext.

content/browser/renderer_host/resource_message_filter.cc

Index: content/browser/renderer_host/resource_message_filter.cc
diff --git a/content/browser/renderer_host/resource_message_filter.cc b/content/browser/renderer_host/resource_message_filter.cc
index fe490f81bf56f8aa69f76c9692e0d5dec7a6daeb..d038ef463dafe225c0c523e2ec8899c1f15845fe 100644
--- a/content/browser/renderer_host/resource_message_filter.cc
+++ b/content/browser/renderer_host/resource_message_filter.cc
@@ -7,15 +7,20 @@
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/render_messages.h"
+#include "content/browser/browser_thread.h"
+#include "content/browser/resource_context.h"
 #include "content/browser/renderer_host/resource_dispatcher_host.h"
 
 ResourceMessageFilter::ResourceMessageFilter(
     int child_id,
     ChildProcessInfo::ProcessType process_type,
+    content::ResourceContextGetter* resource_context_getter,
     ResourceDispatcherHost* resource_dispatcher_host)
     : child_id_(child_id),
       process_type_(process_type),
-      resource_dispatcher_host_(resource_dispatcher_host) {
+      resource_dispatcher_host_(resource_dispatcher_host),
+      resource_context_getter_(resource_context_getter),
+      resource_context_(NULL) {
 }
 
 ResourceMessageFilter::~ResourceMessageFilter() {
@@ -50,3 +55,14 @@ ChromeURLRequestContext* ResourceMessageFilter::GetURLRequestContext(
 
   return static_cast<ChromeURLRequestContext*>(rv);
 }
+
+const content::ResourceContext& ResourceMessageFilter::resource_context() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  if (resource_context_getter_.get()) {
+    DCHECK(!resource_context_);
+    resource_context_ = &resource_context_getter_->Get();
+    resource_context_getter_.reset();
+  }
+  DCHECK(resource_context_);
+  return *resource_context_;
+}