Migrate RenderProcessHost, ChildThread to InterfaceRegistry/Provider

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index 00bb08d657ffae21a4f551bd588c718543fffaf8..c9ef24e4a91e29ef134f5066fdb019deb84001bf 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -190,7 +190,7 @@ bool ChromeContentUtilityClient::OnMessageReceived(
   return false;
 }
 
-void ChromeContentUtilityClient::RegisterMojoInterfaces(
+void ChromeContentUtilityClient::ExposeInterfacesToBrowser(
     shell::InterfaceRegistry* registry) {
   // When the utility process is running with elevated privileges, we need to
   // filter messages so that only a whitelist of IPCs can run. In Mojo, there's