Move fxge/android to if(is_android) on build

core/fxge/skia/fx_skia_device.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.
 
-#if defined(_SKIA_SUPPORT_)
 #include <algorithm>
 #include <vector>
 
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxcrt/fx_memory.h"
 
 #include "core/fpdfapi/page/cpdf_shadingpattern.h"
 #include "core/fpdfapi/page/pageint.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
@@ skipping 1654 matching lines @@
       uint8_t g = SkGetPackedG32(srcRow[x]);
       uint8_t b = SkGetPackedB32(srcRow[x]);
       SkA32Assert(a);
       SkASSERT(r <= a);
       SkASSERT(g <= a);
       SkASSERT(b <= a);
     }
   }
 #endif
 }
-
-#endif