Remove resource_context.h include from resource_loader.cc.

content/public/browser/resource_dispatcher_host_delegate.cc

Index: content/public/browser/resource_dispatcher_host_delegate.cc
diff --git a/content/public/browser/resource_dispatcher_host_delegate.cc b/content/public/browser/resource_dispatcher_host_delegate.cc
index 0f6c96d90405b82aa004c74fda2c6a8007288b83..ce235c9659f448e67d435bb6f29e3f18c7cadab9 100644
--- a/content/public/browser/resource_dispatcher_host_delegate.cc
+++ b/content/public/browser/resource_dispatcher_host_delegate.cc
@@ -7,6 +7,7 @@
 #include "content/public/browser/navigation_data.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/browser/stream_info.h"
+#include "net/ssl/client_cert_store.h"
 
 namespace content {
 
@@ -103,7 +104,10 @@ NavigationData* ResourceDispatcherHostDelegate::GetNavigationData(
   return nullptr;
 }
 
-ResourceDispatcherHostDelegate::ResourceDispatcherHostDelegate() {
+std::unique_ptr<net::ClientCertStore>
+ResourceDispatcherHostDelegate::CreateClientCertStore(
+    ResourceContext* resource_context) {
+  return std::unique_ptr<net::ClientCertStore>();
 }
 
 ResourceDispatcherHostDelegate::~ResourceDispatcherHostDelegate() {