Update uses of TimeDelta in mac bookmark test code.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm
index a6ce4cbb7417ecea15cedcc2ba88dcfd7aed5e5a..857a1dcd4db2bcaa6c2382c09d3939f2ed7ebe14 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm
@@ -48,7 +48,8 @@ TEST_F(BookmarkBarFolderHoverStateTest, HoverState) {
   message_loop.PostDelayedTask(
       FROM_HERE,
       MessageLoop::QuitClosure(),
-      bookmarks::kDragHoverOpenDelay * 1000.0 * 1.5);
+      base::TimeDelta::FromMilliseconds(
+          bookmarks::kDragHoverOpenDelay * 1000.0 * 1.5));
   message_loop.Run();
   ASSERT_EQ(kHoverStateOpen, [bbfhs hoverState]);
   ASSERT_EQ(button, [bbfhs hoverButton]);
@@ -68,7 +69,8 @@ TEST_F(BookmarkBarFolderHoverStateTest, HoverState) {
   message_loop.PostDelayedTask(
       FROM_HERE,
       MessageLoop::QuitClosure(),
-      bookmarks::kDragHoverCloseDelay * 1000.0 * 1.5);
+      base::TimeDelta::FromMilliseconds(
+          bookmarks::kDragHoverCloseDelay * 1000.0 * 1.5));
   message_loop.Run();
   ASSERT_EQ(kHoverStateClosed, [bbfhs hoverState]);
   ASSERT_EQ(nil, [bbfhs hoverButton]);