Implement support for importing favorites from Edge on Windows 10.

chrome/browser/importer/importer_uma.cc

Index: chrome/browser/importer/importer_uma.cc
diff --git a/chrome/browser/importer/importer_uma.cc b/chrome/browser/importer/importer_uma.cc
index 839dd6e68d397c4b09ba878b8006fa32cb613baf..da87e84ffe7c2193ea16d24f1ee1174c51c9503f 100644
--- a/chrome/browser/importer/importer_uma.cc
+++ b/chrome/browser/importer/importer_uma.cc
@@ -22,6 +22,9 @@ enum ImporterTypeMetrics {
 #endif
   IMPORTER_METRICS_GOOGLE_TOOLBAR5 = 5,  // obsolete
   IMPORTER_METRICS_BOOKMARKS_FILE  = 6,
+#if defined(OS_WIN)
+  IMPORTER_METRICS_EDGE            = 7,
+#endif
 
   // Insert new values here. Never remove any existing values, as this enum is
   // used to bucket a UMA histogram, and removing values breaks that.
@@ -41,6 +44,9 @@ void LogImporterUseToMetrics(const std::string& metric_postfix,
     case TYPE_IE:
       metrics_type = IMPORTER_METRICS_IE;
       break;
+    case TYPE_EDGE:
+      metrics_type = IMPORTER_METRICS_EDGE;
+      break;
 #endif
     case TYPE_FIREFOX:
       metrics_type = IMPORTER_METRICS_FIREFOX3;