Remove worker support of Web SQL Database.

Source/modules/webdatabase/DatabaseServer.h

Index: Source/modules/webdatabase/DatabaseServer.h
diff --git a/Source/modules/webdatabase/DatabaseServer.h b/Source/modules/webdatabase/DatabaseServer.h
index 5000eecc57f5904be8211a5ff751c5cb9beb7b93..d2fd6211b7d21f507011645ce937773f1ed9a8aa 100644
--- a/Source/modules/webdatabase/DatabaseServer.h
+++ b/Source/modules/webdatabase/DatabaseServer.h
@@ -38,16 +38,14 @@ public:
 
     virtual String fullPathForDatabase(SecurityOrigin*, const String& name, bool createIfDoesNotExist) OVERRIDE;
 
-    virtual PassRefPtrWillBeRawPtr<DatabaseBackendBase> openDatabase(DatabaseContext*, DatabaseType,
+    virtual PassRefPtrWillBeRawPtr<DatabaseBackendBase> openDatabase(DatabaseContext*,
         const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize,
         bool setVersionInNewDatabase, DatabaseError&, String& errorMessage) OVERRIDE;
 
     virtual void closeDatabasesImmediately(const String& originIdentifier, const String& name) OVERRIDE;
 
-    virtual void interruptAllDatabasesForContext(const DatabaseContext*) OVERRIDE;
-
 protected:
-    PassRefPtrWillBeRawPtr<DatabaseBackendBase> createDatabase(DatabaseContext*, DatabaseType,
+    PassRefPtrWillBeRawPtr<DatabaseBackendBase> createDatabase(DatabaseContext*,
         const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize,
         bool setVersionInNewDatabase, DatabaseError&, String& errorMessage);
 };