Remove worker support of Web SQL Database.

Source/modules/modules.gypi

Index: Source/modules/modules.gypi
diff --git a/Source/modules/modules.gypi b/Source/modules/modules.gypi
index 17fa290ed75bdda848f1d086b84b15d533a9be38..19d56ef197398907cadb295630bf213872cd1069 100644
--- a/Source/modules/modules.gypi
+++ b/Source/modules/modules.gypi
@@ -180,7 +180,6 @@
       'webaudio/WaveShaperNode.idl',
       'webdatabase/Database.idl',
       'webdatabase/DatabaseCallback.idl',
-      'webdatabase/DatabaseSync.idl',
       'webdatabase/SQLError.idl',
       'webdatabase/SQLResultSet.idl',
       'webdatabase/SQLResultSetRowList.idl',
@@ -189,8 +188,6 @@
       'webdatabase/SQLTransaction.idl',
       'webdatabase/SQLTransactionCallback.idl',
       'webdatabase/SQLTransactionErrorCallback.idl',
-      'webdatabase/SQLTransactionSync.idl',
-      'webdatabase/SQLTransactionSyncCallback.idl',
       'webmidi/MIDIAccess.idl',
       'webmidi/MIDIConnectionEvent.idl',
       'webmidi/MIDIErrorCallback.idl',
@@ -249,7 +246,6 @@
       'vibration/NavigatorVibration.idl',
       'webaudio/WindowWebAudio.idl',
       'webdatabase/WindowWebDatabase.idl',
-      'webdatabase/WorkerGlobalScopeWebDatabase.idl',
       'webmidi/NavigatorWebMIDI.idl',
     ],
     # interfaces that inherit from Event
@@ -870,8 +866,6 @@
       'webdatabase/DatabaseBackend.h',
       'webdatabase/DatabaseBackendBase.cpp',
       'webdatabase/DatabaseBackendBase.h',
-      'webdatabase/DatabaseBackendSync.cpp',
-      'webdatabase/DatabaseBackendSync.h',
       'webdatabase/DatabaseBase.cpp',
       'webdatabase/DatabaseBase.h',
       'webdatabase/DatabaseBasicTypes.h',
@@ -885,8 +879,6 @@
       'webdatabase/DatabaseManager.h',
       'webdatabase/DatabaseServer.cpp',
       'webdatabase/DatabaseServer.h',
-      'webdatabase/DatabaseSync.cpp',
-      'webdatabase/DatabaseSync.h',
       'webdatabase/DatabaseTask.cpp',
       'webdatabase/DatabaseTask.h',
       'webdatabase/DatabaseThread.cpp',
@@ -908,14 +900,10 @@
       'webdatabase/SQLStatement.h',
       'webdatabase/SQLStatementBackend.cpp',
       'webdatabase/SQLStatementBackend.h',
-      'webdatabase/SQLStatementSync.cpp',
-      'webdatabase/SQLStatementSync.h',
       'webdatabase/SQLTransaction.cpp',
       'webdatabase/SQLTransaction.h',
       'webdatabase/SQLTransactionBackend.cpp',
       'webdatabase/SQLTransactionBackend.h',
-      'webdatabase/SQLTransactionBackendSync.cpp',
-      'webdatabase/SQLTransactionBackendSync.h',
       'webdatabase/SQLTransactionClient.cpp',
       'webdatabase/SQLTransactionClient.h',
       'webdatabase/SQLTransactionCoordinator.cpp',
@@ -923,11 +911,6 @@
       'webdatabase/SQLTransactionState.h',
       'webdatabase/SQLTransactionStateMachine.cpp',
       'webdatabase/SQLTransactionStateMachine.h',
-      'webdatabase/SQLTransactionSync.cpp',
-      'webdatabase/SQLTransactionSync.h',
-      'webdatabase/SQLTransactionSyncCallback.h',
-      'webdatabase/WorkerGlobalScopeWebDatabase.cpp',
-      'webdatabase/WorkerGlobalScopeWebDatabase.h',
       'webdatabase/sqlite/SQLValue.cpp',
       'webdatabase/sqlite/SQLiteAuthorizer.cpp',
       'webdatabase/sqlite/SQLiteDatabase.cpp',