[ServiceWorker] Don't send the UMA related headers to the ServiceWorker.

chrome/browser/devtools/devtools_network_transaction_factory.cc

Index: chrome/browser/devtools/devtools_network_transaction_factory.cc
diff --git a/chrome/browser/devtools/devtools_network_transaction_factory.cc b/chrome/browser/devtools/devtools_network_transaction_factory.cc
index 3fd8b84b4caa42b02c68068b2423d60d282b6d71..da246274895f5ecdc3a69381d9b0646f5b0cfb2f 100644
--- a/chrome/browser/devtools/devtools_network_transaction_factory.cc
+++ b/chrome/browser/devtools/devtools_network_transaction_factory.cc
@@ -6,6 +6,7 @@
 
 #include "chrome/browser/devtools/devtools_network_controller.h"
 #include "chrome/browser/devtools/devtools_network_transaction.h"
+#include "content/public/browser/service_worker_context.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_network_layer.h"
 #include "net/http/http_network_transaction.h"
@@ -15,6 +16,10 @@ DevToolsNetworkTransactionFactory::DevToolsNetworkTransactionFactory(
     net::HttpNetworkSession* session)
     : controller_(controller),
       network_layer_(new net::HttpNetworkLayer(session)) {
+  content::ServiceWorkerContext::AddExcludedHeaderNameForFetchEvent(
+      DevToolsNetworkTransaction::kDevToolsRequestInitiator);
+  content::ServiceWorkerContext::AddExcludedHeaderNameForFetchEvent(
+      DevToolsNetworkTransaction::kDevToolsEmulateNetworkConditionsClientId);
 }
 
 DevToolsNetworkTransactionFactory::~DevToolsNetworkTransactionFactory() {