Generalize the icon popup menu types.

Generalized popup menu types and logic to allow wider uses outside of launcher.

Bug: 198438631
Test: long pressed launcher icons and pressed menu options
Change-Id: Iadcbb1796496c0061dcee362784e426ff55dc94a

src/com/android/launcher3/views/ActivityContext.java

@@ -19,6 +19,7 @@ import android.content.Context;
 import android.content.ContextWrapper;
 import android.graphics.Rect;
 import android.view.LayoutInflater;
+import android.view.View;
 import android.view.View.AccessibilityDelegate;
 
 import androidx.annotation.Nullable;
@@ -159,4 +160,10 @@ public interface ActivityContext {
             return null;
         }
     }
+
+    default View.OnClickListener getItemOnClickListener() {
+        return v -> {
+            // No op.
+        };
+    }
 }