Changes required to use MaskableIconDrawable inside Launcher3

This CL will bake the legacy icons inside a grey background

Note: There will be follow up CL to change the color and shadow of the
legacy icon. The idea of this CL is to first test if MaskableIconDrawable
methods and class work properly.

Bug: 32063838
Bug: 33553066

Change-Id: I3d02e619fcb0cd9879baa22a025b5d95c829f26c

src/com/android/launcher3/util/SQLiteCacheHelper.java

@@ -9,6 +9,9 @@ import android.database.sqlite.SQLiteFullException;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.util.Log;
 
+import com.android.launcher3.Utilities;
+import com.android.launcher3.config.ProviderConfig;
+
 /**
  * An extension of {@link SQLiteOpenHelper} with utility methods for a single table cache DB.
  * Any exception during write operations are ignored, and any version change causes a DB reset.
@@ -16,12 +19,18 @@ import android.util.Log;
 public abstract class SQLiteCacheHelper {
     private static final String TAG = "SQLiteCacheHelper";
 
+    private static final boolean NO_ICON_CACHE = ProviderConfig.IS_DOGFOOD_BUILD &&
+            Utilities.isPropertyEnabled("MEMORY_ONLY_ICON_CACHE");
+
     private final String mTableName;
     private final MySQLiteOpenHelper mOpenHelper;
 
     private boolean mIgnoreWrites;
 
     public SQLiteCacheHelper(Context context, String name, int version, String tableName) {
+        if (NO_ICON_CACHE) {
+            name = null;
+        }
         mTableName = tableName;
         mOpenHelper = new MySQLiteOpenHelper(context, name, version);