Network traffic annotation added to google_apis/gaia.

google_apis/gaia/oauth2_api_call_flow.h

Index: google_apis/gaia/oauth2_api_call_flow.h
diff --git a/google_apis/gaia/oauth2_api_call_flow.h b/google_apis/gaia/oauth2_api_call_flow.h
index 846a907e1e5fc35f7401f1077b8233f8a04a1f19..1878e4ef262142dbf900629c3a426e96108d6548 100644
--- a/google_apis/gaia/oauth2_api_call_flow.h
+++ b/google_apis/gaia/oauth2_api_call_flow.h
@@ -9,6 +9,7 @@
 #include <string>
 
 #include "base/macros.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "url/gurl.h"
@@ -29,8 +30,10 @@ class OAuth2ApiCallFlow : public net::URLFetcherDelegate {
   ~OAuth2ApiCallFlow() override;
 
   // Start the flow.
-  virtual void Start(net::URLRequestContextGetter* context,
-                     const std::string& access_token);
+  virtual void Start(
+      net::URLRequestContextGetter* context,
+      const std::string& access_token,
+      const net::NetworkTrafficAnnotationTag& traffic_annotation);
 
   // net::URLFetcherDelegate implementation.
   void OnURLFetchComplete(const net::URLFetcher* source) override;
@@ -69,7 +72,8 @@ class OAuth2ApiCallFlow : public net::URLFetcherDelegate {
   // The URLFether's method will be GET if body is empty, POST otherwise.
   std::unique_ptr<net::URLFetcher> CreateURLFetcher(
       net::URLRequestContextGetter* context,
-      const std::string& access_token);
+      const std::string& access_token,
+      const net::NetworkTrafficAnnotationTag& traffic_annotation);
 
   // Helper methods to implement the state machine for the flow.
   void BeginApiCall();