Network traffic annotation added to URLLoaderImpl.

content/child/throttling_url_loader.h

Index: content/child/throttling_url_loader.h
diff --git a/content/child/throttling_url_loader.h b/content/child/throttling_url_loader.h
index 49615f043ae72232d088c07b188f1bf7478b086b..820200f8acf9ec74822bc00fb9fc171b887129d5 100644
--- a/content/child/throttling_url_loader.h
+++ b/content/child/throttling_url_loader.h
@@ -34,7 +34,8 @@ class CONTENT_EXPORT ThrottlingURLLoader : public mojom::URLLoaderClient,
       int32_t request_id,
       uint32_t options,
       std::unique_ptr<ResourceRequest> url_request,
-      mojom::URLLoaderClient* client);
+      mojom::URLLoaderClient* client,
+      const net::MutableNetworkTrafficAnnotationTag& traffic_annotation);
 
   ~ThrottlingURLLoader() override;
 
@@ -42,8 +43,10 @@ class CONTENT_EXPORT ThrottlingURLLoader : public mojom::URLLoaderClient,
   void SetPriority(net::RequestPriority priority, int32_t intra_priority_value);
 
  private:
-  ThrottlingURLLoader(std::vector<std::unique_ptr<URLLoaderThrottle>> throttles,
-                      mojom::URLLoaderClient* client);
+  ThrottlingURLLoader(
+      std::vector<std::unique_ptr<URLLoaderThrottle>> throttles,
+      mojom::URLLoaderClient* client,
+      const net::MutableNetworkTrafficAnnotationTag& traffic_annotation);
 
   void Start(mojom::URLLoaderFactory* factory,
              int32_t routing_id,
@@ -109,6 +112,8 @@ class CONTENT_EXPORT ThrottlingURLLoader : public mojom::URLLoaderClient,
   net::RequestPriority priority_ = net::MINIMUM_PRIORITY;
   int32_t intra_priority_value_ = 0;
 
+  const net::MutableNetworkTrafficAnnotationTag traffic_annotation_;
+
   DISALLOW_COPY_AND_ASSIGN(ThrottlingURLLoader);
 };