Move fx_agg_driver files up one level

pdfium.gyp

 # Copyright 2015 PDFium 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': {
     # TODO(thakis): Enable this, pdfium:29
     #'chromium_code': 1,
 
     'variables': {
@@ skipping 516 matching lines @@
         'third_party/third_party.gyp:fx_agg',
       ],
       'sources': [
         'core/include/fxge/fpf.h',
         'core/include/fxge/fx_dib.h',
         'core/include/fxge/fx_font.h',
         'core/include/fxge/fx_freetype.h',
         'core/include/fxge/fx_ge.h',
         'core/include/fxge/fx_ge_apple.h',
         'core/include/fxge/fx_ge_win32.h',
-        'core/src/fxge/agg/include/fx_agg_driver.h',
-        'core/src/fxge/agg/src/fx_agg_driver.cpp',
+        'core/src/fxge/agg/fx_agg_driver.h',
+        'core/src/fxge/agg/fx_agg_driver.cpp',
         'core/src/fxge/android/fpf_skiafont.cpp',
         'core/src/fxge/android/fpf_skiafont.h',
         'core/src/fxge/android/fpf_skiafontmgr.cpp',
         'core/src/fxge/android/fpf_skiafontmgr.h',
         'core/src/fxge/android/fpf_skiamodule.cpp',
         'core/src/fxge/android/fpf_skiamodule.h',
         'core/src/fxge/android/fx_android_font.cpp',
         'core/src/fxge/android/fx_android_font.h',
         'core/src/fxge/android/fx_android_imp.cpp',
         'core/src/fxge/apple/apple_int.h',
@@ skipping 355 matching lines @@
             'fpdfsdk/include/fpdfxfa/fpdfxfa_app.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_page.h',
             'fpdfsdk/include/fpdfxfa/fpdfxfa_util.h',
           ],
         },
       ]
     }],
   ]
 }