Refactor navigator.connect code to make it more flexible.

content/browser/storage_partition_impl_map.cc

Index: content/browser/storage_partition_impl_map.cc
diff --git a/content/browser/storage_partition_impl_map.cc b/content/browser/storage_partition_impl_map.cc
index afd9c17875fa71c9c52421719f481b44aea12ea7..00fb52fa608474e4e4cc8f2f46150714bcbbce6a 100644
--- a/content/browser/storage_partition_impl_map.cc
+++ b/content/browser/storage_partition_impl_map.cc
@@ -30,6 +30,8 @@
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/navigator_connect_context.h"
+#include "content/public/browser/navigator_connect_service_factory.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/url_constants.h"
@@ -460,6 +462,9 @@ StoragePartitionImpl* StoragePartitionImplMap::Get(
       browser_context_->GetMediaRequestContextForStoragePartition(
           partition->GetPath(), in_memory));
 
+  GetContentClient()->browser()->GetAdditionalNavigatorConnectServices(
+      partition->GetNavigatorConnectContext());
+
   PostCreateInitialization(partition, in_memory);
 
   return partition;