Mojo Spy core first cut

mojo/service_manager/service_manager.cc

Index: mojo/service_manager/service_manager.cc
diff --git a/mojo/service_manager/service_manager.cc b/mojo/service_manager/service_manager.cc
index ab72bdffd65549cbe4f221a2508502ceae53d53d..f12249ea66bc24cf59f8472ff4f1ca1abf5dcbc5 100644
--- a/mojo/service_manager/service_manager.cc
+++ b/mojo/service_manager/service_manager.cc
@@ -70,7 +70,9 @@ bool ServiceManager::TestAPI::HasFactoryForURL(const GURL& url) const {
       manager_->url_to_service_factory_.end();
 }
 
-ServiceManager::ServiceManager() : default_loader_(NULL) {
+ServiceManager::ServiceManager()
+    : default_loader_(NULL),
+      interceptor_(NULL) {
 }
 
 ServiceManager::~ServiceManager() {
@@ -100,7 +102,12 @@ void ServiceManager::Connect(const GURL& url,
     service_factory = new ServiceFactory(this, url);
     url_to_service_factory_[url] = service_factory;
   }
-  service_factory->ConnectToClient(client_handle.Pass());
+  if (interceptor_) {
+    service_factory->ConnectToClient(
+        interceptor_->OnConnectToClient(url, client_handle.Pass()));
+  } else {
+    service_factory->ConnectToClient(client_handle.Pass());
+  }
 }
 
 void ServiceManager::SetLoaderForURL(ServiceLoader* loader, const GURL& url) {
@@ -114,6 +121,10 @@ void ServiceManager::SetLoaderForScheme(ServiceLoader* loader,
   scheme_to_loader_[scheme] = loader;
 }
 
+void ServiceManager::SetInterceptor(Interceptor* interceptor) {
+  interceptor_ = interceptor;
+}
+
 ServiceLoader* ServiceManager::GetLoaderForURL(const GURL& url) {
   URLToLoaderMap::const_iterator url_it = url_to_loader_.find(url);
   if (url_it != url_to_loader_.end())