Replace agg with skia

core/src/fxge/android/fpf_skiamodule.cpp

 // Copyright 2014 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.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fx_fpf.h"
 #if _FX_OS_ == _FX_ANDROID_
 #include "fpf_skiamodule.h"
 #include "fpf_skiafontmgr.h"
@@ skipping 20 matching lines @@
 }
 IFPF_FontMgr* CFPF_SkiaDeviceModule::GetFontMgr()
 {
     if (!m_pFontMgr) {
         m_pFontMgr = FX_NEW CFPF_SkiaFontMgr;
         if (!m_pFontMgr) {
             return NULL;
         }
         if (!m_pFontMgr->InitFTLibrary()) {
             delete m_pFontMgr;
-            return NULL;
+            m_pFontMgr = NULL;
         }
     }
     return (IFPF_FontMgr*)m_pFontMgr;
 }
 #endif