Adding status info to DownloadUIItem and piping it through.

components/offline_pages/core/downloads/download_ui_adapter_unittest.cc

Index: components/offline_pages/core/downloads/download_ui_adapter_unittest.cc
diff --git a/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc b/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc
index c65dc37d075320fa2d36345da55abcef813f3af7..5c2edeaa6146fb91ca60ecc65157b8d58cecbec3 100644
--- a/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc
+++ b/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc
@@ -47,6 +47,20 @@ static const base::Time kTestCreationTime = base::Time::Now();
 static const base::string16 kTestTitle = base::ASCIIToUTF16("test title");
 }  // namespace
 
+// Mock DownloadUIAdapter::Delegate
+class DownloadUIAdapterDelegate : public DownloadUIAdapter::Delegate {
+ public:
+  DownloadUIAdapterDelegate() {
+  }
+  ~DownloadUIAdapterDelegate() override {}
+
+  // DownloadUIAdapter::Delegate
+  bool IsVisibleInUI(const ClientId& client_id) override { return true; }
+  bool IsTemporaryHiddenInUI(const ClientId& client_id) override {
+    return false;
+  }
+};
+
 // Mock OfflinePageModel for testing the SavePage calls.
 class MockOfflinePageModel : public StubOfflinePageModel {
  public:
@@ -54,7 +68,8 @@ class MockOfflinePageModel : public StubOfflinePageModel {
       : observer_(nullptr),
         task_runner_(task_runner),
         policy_controller_(new ClientPolicyController()) {
-    adapter.reset(new DownloadUIAdapter(this));
+    DownloadUIAdapterDelegate* delegate = new DownloadUIAdapterDelegate(this, )
+    adapter.reset(new DownloadUIAdapter(this, ));
     // Add one page.
     OfflinePageItem page(GURL(kTestUrl), kTestOfflineId1, kTestClientId1,
                          kTestFilePath, kFileSize, kTestCreationTime);