Enhance chrome.app.window API for shelf integration with pinning support

ash/common/shelf/shelf_delegate.h

Index: ash/common/shelf/shelf_delegate.h
diff --git a/ash/common/shelf/shelf_delegate.h b/ash/common/shelf/shelf_delegate.h
index 7c58121d3fa110714ee4607591e3da7e5af5403f..94ca69c75a9eb726d8205f0cad8869c357a88b18 100644
--- a/ash/common/shelf/shelf_delegate.h
+++ b/ash/common/shelf/shelf_delegate.h
@@ -37,7 +37,8 @@ class ASH_EXPORT ShelfDelegate {
   virtual void OnShelfVisibilityStateChanged(Shelf* shelf) = 0;
 
   // Get the shelf ID from an application ID.

[stevenjb, 2016/08/29 15:56:30]

The comment needs to be updated, but this is kind of confusing. I think we may
need a separate delegate method.

[Andra Paraschiv, 2016/08/30 09:58:24]

Added a separate delegate method that includes the launch id.

-  virtual ShelfID GetShelfIDForAppID(const std::string& app_id) = 0;
+  virtual ShelfID GetShelfIDForAppID(const std::string& app_id,
+                                     const std::string& app_shelf_id) = 0;
 
   // Checks whether a mapping exists from the ShelfID |id| to an app id.
   virtual bool HasShelfIDToAppIDMapping(ShelfID id) const = 0;