Making all DOM types abstract and removing superfluous Dartium constructors.

sdk/lib/web_sql/dart2js/web_sql_dart2js.dart

Index: sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
diff --git a/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart b/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
index 0ef2334f895ee146d13e76fbe00159564f32ed90..d8b647e0bb60b98b75790e42441f3812ee1c0d68 100644
--- a/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
+++ b/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
@@ -82,6 +82,8 @@ typedef void SqlTransactionErrorCallback(SqlError error);
 // http://www.w3.org/TR/webdatabase/#asynchronous-database-api
 @Experimental // deprecated
 class SqlDatabase native "Database" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlDatabase._() { throw new UnsupportedError("Not supported"); }
 
   /// Checks if this type is supported on the current platform.
   static bool get supported => JS('bool', '!!(window.openDatabase)');
@@ -124,6 +126,8 @@ class SqlDatabase native "Database" {
 // http://www.w3.org/TR/webdatabase/#sqlerror
 @Experimental // deprecated
 class SqlError native "SQLError" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlError._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SQLError.CONSTRAINT_ERR')
   @DocsEditable
@@ -175,6 +179,8 @@ class SqlError native "SQLError" {
 // http://www.w3.org/TR/webdatabase/#sqlexception
 @Experimental // deprecated
 class SqlException native "SQLException" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlException._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SQLException.CONSTRAINT_ERR')
   @DocsEditable
@@ -226,6 +232,8 @@ class SqlException native "SQLException" {
 // http://www.w3.org/TR/webdatabase/#sqlresultset
 @Experimental // deprecated
 class SqlResultSet native "SQLResultSet" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlResultSet._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SQLResultSet.insertId')
   @DocsEditable
@@ -249,6 +257,8 @@ class SqlResultSet native "SQLResultSet" {
 // http://www.w3.org/TR/webdatabase/#sqlresultsetrowlist
 @Experimental // deprecated
 class SqlResultSetRowList extends Interceptor with ListMixin<Map>, ImmutableListMixin<Map> implements JavaScriptIndexingBehavior, List<Map> native "SQLResultSetRowList" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlResultSetRowList._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SQLResultSetRowList.length')
   @DocsEditable
@@ -323,6 +333,8 @@ class SqlResultSetRowList extends Interceptor with ListMixin<Map>, ImmutableList
 // http://www.w3.org/TR/webdatabase/#sqltransaction
 @deprecated // deprecated
 class SqlTransaction native "SQLTransaction" {
+  // To suppress missing implicit constructor warnings.
+  factory SqlTransaction._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SQLTransaction.executeSql')
   @DocsEditable
@@ -341,4 +353,6 @@ class SqlTransaction native "SQLTransaction" {
 // http://www.w3.org/TR/webdatabase/#sqltransactionsync
 @Experimental // deprecated
 abstract class _SQLTransactionSync native "SQLTransactionSync" {
+  // To suppress missing implicit constructor warnings.
+  factory _SQLTransactionSync._() { throw new UnsupportedError("Not supported"); }
 }