Add new UMA stats to get a handle on Downloads UI Usage

chrome/browser/history/history_unittest.cc

Index: chrome/browser/history/history_unittest.cc
diff --git a/chrome/browser/history/history_unittest.cc b/chrome/browser/history/history_unittest.cc
index def4f405acb051077c4893e2b8d8ff13760d59a1..9b0e4190d9a1859ac6925620af24e84651d5d276 100644
--- a/chrome/browser/history/history_unittest.cc
+++ b/chrome/browser/history/history_unittest.cc
@@ -191,9 +191,11 @@ class HistoryTest : public testing::Test {
         GURL("foo-url"),
         GURL(""),
         time,
+        time,
         0,
         512,
         state,
+        0,
         0);
     return db_->CreateDownload(download);
   }
@@ -365,8 +367,10 @@ TEST_F(HistoryTest, ClearBrowsingData_Downloads) {
             downloads[2].start_time.ToInternalValue());
 
   // Change state so we can delete the downloads.
-  EXPECT_TRUE(db_->UpdateDownload(512, DownloadItem::COMPLETE, in_progress));
-  EXPECT_TRUE(db_->UpdateDownload(512, DownloadItem::CANCELLED, removing));
+  EXPECT_TRUE(db_->UpdateDownload(
+        512, DownloadItem::COMPLETE, base::Time::Now(), in_progress));
+  EXPECT_TRUE(db_->UpdateDownload(
+        512, DownloadItem::CANCELLED, base::Time::Now(), removing));
 
   // Try removing from Time=0. This should delete all.
   db_->RemoveDownloadsBetween(Time(), Time());