Revert of Delete pre-MD code from OmniboxResultView

components/toolbar/toolbar_model.h

Index: components/toolbar/toolbar_model.h
diff --git a/components/toolbar/toolbar_model.h b/components/toolbar/toolbar_model.h
index 48a1a8b78d8809d2764284fc357ccf38b83c3970..19c60d1cb31082b8c7ecdf82086b3fef53e427a9 100644
--- a/components/toolbar/toolbar_model.h
+++ b/components/toolbar/toolbar_model.h
@@ -43,10 +43,13 @@
   virtual security_state::SecurityStateModel::SecurityLevel GetSecurityLevel(
       bool ignore_editing) const = 0;
 
-  // Returns the id of the icon to show to the left of the address, based on the
-  // current URL.  When search term replacement is active, this returns a search
-  // icon.  This doesn't cover specialized icons while the user is editing; see
-  // OmniboxView::GetVectorIcon().
+  // Returns the resource_id of the icon to show to the left of the address,
+  // based on the current URL.  When search term replacement is active, this
+  // returns a search icon.  This doesn't cover specialized icons while the
+  // user is editing; see OmniboxView::GetIcon().
+  virtual int GetIcon() const = 0;
+
+  // Like GetIcon(), but gets the vector asset ID.
   virtual gfx::VectorIconId GetVectorIcon() const = 0;
 
   // Returns text for the omnibox secure verbose chip.