Record data use of user traffic by different core page transition types

components/data_use_measurement/core/url_request_classifier.h

Index: components/data_use_measurement/core/url_request_classifier.h
diff --git a/components/data_use_measurement/core/url_request_classifier.h b/components/data_use_measurement/core/url_request_classifier.h
index 4714a10872e52664d24741ff0d4e6e64be26407a..5e2628edd0c312831439f2f6e8cc6f862f74214d 100644
--- a/components/data_use_measurement/core/url_request_classifier.h
+++ b/components/data_use_measurement/core/url_request_classifier.h
@@ -5,6 +5,8 @@
 #ifndef COMPONENTS_DATA_USE_MEASUREMENT_CORE_URL_REQUEST_CLASSIFIER_H_
 #define COMPONENTS_DATA_USE_MEASUREMENT_CORE_URL_REQUEST_CLASSIFIER_H_
 
+#include <stdint.h>
+
 namespace net {
 class URLRequest;
 }
@@ -18,6 +20,10 @@ class URLRequestClassifier {
 
   // Returns true if the URLRequest |request| is initiated by user traffic.
   virtual bool IsUserRequest(const net::URLRequest& request) const = 0;
+
+  // Records the page transition histograms.
+  virtual void RecordPageTransitionUMA(int32_t page_transition,
+                                       int64_t received_bytes) const = 0;
 };
 
 }  // namespace data_use_measurement