media: Add UMA to record time to GenerateRequest and LoadSession

media/blink/cdm_result_promise_helper.h

Index: media/blink/cdm_result_promise_helper.h
diff --git a/media/blink/cdm_result_promise_helper.h b/media/blink/cdm_result_promise_helper.h
index 443f64688a06cb2add3e8df53ca68a642b51a383..0be4b726096b8f51b13d0ab10c8df254ef651d21 100644
--- a/media/blink/cdm_result_promise_helper.h
+++ b/media/blink/cdm_result_promise_helper.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "base/time/time.h"
 #include "media/base/cdm_promise.h"
 #include "media/blink/media_blink_export.h"
 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h"
@@ -38,6 +39,9 @@ ConvertCdmException(CdmPromise::Exception exception_code);
 MEDIA_BLINK_EXPORT void ReportCdmResultUMA(const std::string& uma_name,
                                            CdmResultForUMA result);
 
+MEDIA_BLINK_EXPORT void ReportTimeUMA(const std::string& uma_name,
+                                      base::TimeDelta time);
+
 }  // namespace media
 
 #endif  // MEDIA_BLINK_CDM_RESULT_PROMISE_HELPER_H_