Record data use of favicon

components/data_use_measurement/core/data_use_measurement_unittest.cc

Index: components/data_use_measurement/core/data_use_measurement_unittest.cc
diff --git a/components/data_use_measurement/core/data_use_measurement_unittest.cc b/components/data_use_measurement/core/data_use_measurement_unittest.cc
index 52887d94c2b6ad170887fafdfe0d2db3fe728020..63cc5e1e191a7fc025b3b69bcf18d7bb5fae123f 100644
--- a/components/data_use_measurement/core/data_use_measurement_unittest.cc
+++ b/components/data_use_measurement/core/data_use_measurement_unittest.cc
@@ -58,6 +58,10 @@ class TestURLRequestClassifier : public base::SupportsUserData::Data,
   void RecordPageTransitionUMA(uint64_t page_transition,
                                int64_t received_bytes) const override {}
 
+  bool IsFavIconRequest(const net::URLRequest& request) const override {
+    return false;
+  }
+
  private:
   DataUseUserData::DataUseContentType content_type_;
 };