Add CombinedDesktopMediaList.

chrome/browser/ui/views/desktop_media_picker_views.h

Index: chrome/browser/ui/views/desktop_media_picker_views.h
diff --git a/chrome/browser/ui/views/desktop_media_picker_views.h b/chrome/browser/ui/views/desktop_media_picker_views.h
index a820ad9147dff0272ce7d611849d35bbe55f53b3..01131d3cf1cb3a2746e555da186ec74de0d4ce54 100644
--- a/chrome/browser/ui/views/desktop_media_picker_views.h
+++ b/chrome/browser/ui/views/desktop_media_picker_views.h
@@ -46,11 +46,13 @@ class DesktopMediaListView : public views::View,
 
  private:
   // DesktopMediaList::Observer interface
-  void OnSourceAdded(int index) override;
-  void OnSourceRemoved(int index) override;
-  void OnSourceMoved(int old_index, int new_index) override;
-  void OnSourceNameChanged(int index) override;
-  void OnSourceThumbnailChanged(int index) override;
+  void OnSourceAdded(DesktopMediaList* list, int index) override;
+  void OnSourceRemoved(DesktopMediaList* list, int index) override;
+  void OnSourceMoved(DesktopMediaList* list,
+                     int old_index,
+                     int new_index) override;
+  void OnSourceNameChanged(DesktopMediaList* list, int index) override;
+  void OnSourceThumbnailChanged(DesktopMediaList* list, int index) override;
 
   // Accepts whatever happens to be selected right now.
   void AcceptSelection();