Move app/sql/* files to sql/ directory.

app/app_base.gypi

 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       'target_name': 'app_base',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../third_party/sqlite/sqlite.gyp:sqlite',
       ],
       'sources': [
-        'sql/connection.cc',
-        'sql/connection.h',
-        'sql/diagnostic_error_delegate.h',
-        'sql/init_status.h',
-        'sql/meta_table.cc',
-        'sql/meta_table.h',
-        'sql/statement.cc',
-        'sql/statement.h',
-        'sql/transaction.cc',
-        'sql/transaction.h',
+        '../sql/connection.cc',
+        '../sql/connection.h',
+        '../sql/diagnostic_error_delegate.h',
+        '../sql/init_status.h',
+        '../sql/meta_table.cc',
+        '../sql/meta_table.h',
+        '../sql/statement.cc',
+        '../sql/statement.h',
+        '../sql/transaction.cc',
+        '../sql/transaction.h',
       ],
     },
   ],
 }