1 files changed, 70 insertions, 0 deletions
diff --git a/chrome/browser/importer/importer_uma.cc b/chrome/browser/importer/importer_uma.cc
new file mode 100644
index 0000000..4e62217
--- /dev/null
+++ b/chrome/browser/importer/importer_uma.cc
@@ -0,0 +1,70 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "build/build_config.h"
+#include "chrome/browser/importer/importer_uma.h"
+
+namespace importer {
+
+namespace {
+
+// The enum used to register importer use.
+enum ImporterTypeMetrics {
+  IMPORTER_METRICS_UNKNOWN         = 0,
+#if defined(OS_WIN)
+  IMPORTER_METRICS_IE              = 1,
+#endif
+  IMPORTER_METRICS_FIREFOX2        = 2,  // obsolete
+  IMPORTER_METRICS_FIREFOX3        = 3,
+#if defined(OS_MACOSX)
+  IMPORTER_METRICS_SAFARI          = 4,
+#endif
+  IMPORTER_METRICS_GOOGLE_TOOLBAR5 = 5,  // obsolete
+  IMPORTER_METRICS_BOOKMARKS_FILE  = 6,
+
+  // Insert new values here. Never remove any existing values, as this enum is
+  // used to bucket a UMA histogram, and removing values breaks that.
+  IMPORTER_METRICS_SIZE
+};
+
+}  // namespace
+
+void LogImporterUseToMetrics(const std::string& metric_postfix,
+                             ImporterType type) {
+  ImporterTypeMetrics metrics_type = IMPORTER_METRICS_UNKNOWN;
+  switch (type) {
+    case TYPE_UNKNOWN:
+      metrics_type = IMPORTER_METRICS_UNKNOWN;
+      break;
+#if defined(OS_WIN)
+    case TYPE_IE:
+      metrics_type = IMPORTER_METRICS_IE;
+      break;
+#endif
+    case TYPE_FIREFOX3:
+      metrics_type = IMPORTER_METRICS_FIREFOX3;
+      break;
+#if defined(OS_MACOSX)
+    case TYPE_SAFARI:
+      metrics_type = IMPORTER_METRICS_SAFARI;
+      break;
+#endif
+    case TYPE_BOOKMARKS_FILE:
+      metrics_type = IMPORTER_METRICS_BOOKMARKS_FILE;
+      break;
+  }
+
+  // Note: This leaks memory, which is the expected behavior as the factory
+  // creates and owns the histogram.
+  base::HistogramBase* histogram =
+      base::LinearHistogram::FactoryGet(
+          "Import.ImporterType." + metric_postfix,
+          1,
+          IMPORTER_METRICS_SIZE,
+          IMPORTER_METRICS_SIZE + 1,
+          base::HistogramBase::kUmaTargetedHistogramFlag);
+  histogram->Add(metrics_type);
+}
+
+}  // namespace importer