Implement deleteItem and openItem on OfflinePageDownloadBridge.

components/offline_pages/downloads/download_ui_adapter.h

Index: components/offline_pages/downloads/download_ui_adapter.h
diff --git a/components/offline_pages/downloads/download_ui_adapter.h b/components/offline_pages/downloads/download_ui_adapter.h
index d96f11d7da757836ac0aee7a2cfc360b2a58b5e3..e64e7c6adb22cae1fa32ad7d77a0df2ffc3a22df 100644
--- a/components/offline_pages/downloads/download_ui_adapter.h
+++ b/components/offline_pages/downloads/download_ui_adapter.h
@@ -70,6 +70,12 @@ class DownloadUIAdapter : public OfflinePageModel::Observer,
   // May return nullptr.
   const DownloadUIItem* GetItem(const std::string& guid) const;
 
+  // Commands from UI. Start async operations, result is observable
+  // via Observer or directly by the user (as in 'open').
+  void DeleteItem(const std::string& guid);
+  std::string GetOfflineUrlByGuid(guid);

[fgorski, 2016/08/09 04:00:51]

this is where it does not compile.

[Dmitry Titov, 2016/08/12 04:01:39]

Done.

+

[fgorski, 2016/08/09 04:00:51]

nit: remove empty line

[Dmitry Titov, 2016/08/12 04:01:39]

Done.

+
   // OfflinePageModel::Observer
   void OfflinePageModelLoaded(OfflinePageModel* model) override;
   void OfflinePageModelChanged(OfflinePageModel* model) override;
@@ -84,6 +90,12 @@ class DownloadUIAdapter : public OfflinePageModel::Observer,
   void OnOfflinePagesLoaded(const MultipleOfflinePageItemResult& pages);
   void NotifyItemsLoaded(Observer* observer);
   void OnOfflinePagesChanged(const MultipleOfflinePageItemResult& pages);
+  void OnDeleteItemByGuid(
+    const MultipleOfflinePageItemResult& pages, const std::string& guid);
+  void OnDeletePagesDone(bool success);
+
+  OfflinePageItem* FindPageByGuid(
+    const MultipleOfflinePageItemResult& pages, const std::string& guid);
   bool IsVisibleInUI(const OfflinePageItem& page);
 
   // Always valid, this class is a member of the model.