Split UserMetrics into API vs. implementation. Move API to content/public.

chrome/browser/ui/views/importer/import_lock_dialog_view.cc

Index: chrome/browser/ui/views/importer/import_lock_dialog_view.cc
diff --git a/chrome/browser/ui/views/importer/import_lock_dialog_view.cc b/chrome/browser/ui/views/importer/import_lock_dialog_view.cc
index ce404f214e3e4c38639dffe465d67efe790e552f..3739a5f162a8ddbb7bdf066094b8741de7411959 100644
--- a/chrome/browser/ui/views/importer/import_lock_dialog_view.cc
+++ b/chrome/browser/ui/views/importer/import_lock_dialog_view.cc
@@ -9,7 +9,7 @@
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/importer/importer_host.h"
 #include "chrome/browser/importer/importer_lock_dialog.h"
-#include "content/browser/user_metrics.h"
+#include "content/public/browser/user_metrics.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
@@ -18,6 +18,8 @@
 #include "ui/views/layout/layout_constants.h"
 #include "ui/views/widget/widget.h"
 
+using content::UserMetricsAction;
+
 // Default size of the dialog window.
 static const int kDefaultWindowWidth = 320;
 static const int kDefaultWindowHeight = 100;
@@ -27,7 +29,7 @@ namespace importer {
 void ShowImportLockDialog(gfx::NativeWindow parent,
                           ImporterHost* importer_host) {
   ImportLockDialogView::Show(parent, importer_host);
-  UserMetrics::RecordAction(UserMetricsAction("ImportLockDialogView_Shown"));
+  content::RecordAction(UserMetricsAction("ImportLockDialogView_Shown"));
 }
 
 }  // namespace importer