[MediaGalleries] Add context menu for forgetting galleries. [views]

chrome/browser/media_galleries/media_galleries_dialog_controller.h

Index: chrome/browser/media_galleries/media_galleries_dialog_controller.h
diff --git a/chrome/browser/media_galleries/media_galleries_dialog_controller.h b/chrome/browser/media_galleries/media_galleries_dialog_controller.h
index cc44f0c977b84798236c2b1ecee5469b099151bc..a5e24f3c0cdd52d3ca794ee6fb014e156c1c933f 100644
--- a/chrome/browser/media_galleries/media_galleries_dialog_controller.h
+++ b/chrome/browser/media_galleries/media_galleries_dialog_controller.h
@@ -24,6 +24,11 @@ namespace extensions {
 class Extension;
 }
 
+namespace ui {
+class MenuModel;
+}
+
+class GalleryContextMenuModel;
 class MediaGalleriesDialogController;
 
 // The view.
@@ -72,6 +77,9 @@ class MediaGalleriesDialogController
   // Header for unattached devices part of the dialog.
   string16 GetUnattachedLocationsHeader() const;
 
+  // Get the text of the forget context menu command.
+  string16 GetDeleteMenuCommand() const;
+
   // Initial state of whether the dialog's confirmation button will be enabled.
   bool HasPermittedGalleries() const;
 
@@ -91,11 +99,16 @@ class MediaGalleriesDialogController
   virtual void DidToggleNewGallery(const MediaGalleryPrefInfo& gallery,
                                    bool enabled);
 
+  // The forget command in the context menu was selected.
+  virtual void DidForgetGallery(MediaGalleryPrefId pref_id);
+
   // The dialog is being deleted.
   virtual void DialogFinished(bool accepted);
 
   virtual content::WebContents* web_contents();
 
+  ui::MenuModel* GetContextMenuModel(MediaGalleryPrefId id);
+
  protected:
   // For use with tests.
   explicit MediaGalleriesDialogController(
@@ -187,6 +200,9 @@ class MediaGalleriesDialogController
 
   scoped_refptr<ui::SelectFileDialog> select_folder_dialog_;
 
+  scoped_ptr<ui::MenuModel> context_menu_model_;
+  scoped_ptr<GalleryContextMenuModel> gallery_menu_model_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesDialogController);
 };