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

chrome/browser/devtools/devtools_network_transaction.h

Index: chrome/browser/devtools/devtools_network_transaction.h
diff --git a/chrome/browser/devtools/devtools_network_transaction.h b/chrome/browser/devtools/devtools_network_transaction.h
index 7ae82698c797f31e4f123680b7cfc6c0bbada811..bebf0136a97d790961383c4ef3f6077e0f6d24f3 100644
--- a/chrome/browser/devtools/devtools_network_transaction.h
+++ b/chrome/browser/devtools/devtools_network_transaction.h
@@ -41,6 +41,9 @@ class DevToolsNetworkControllerHelper;
 // net::ERR_INTERNET_DISCONNECTED result value.
 class DevToolsNetworkTransaction : public net::HttpTransaction {
  public:
+  static const char kDevToolsRequestInitiator[];
+  static const char kDevToolsEmulateNetworkConditionsClientId[];
+
   DevToolsNetworkTransaction(
       DevToolsNetworkController* controller,
       scoped_ptr<net::HttpTransaction> network_transaction);