Remove duplicate .cpp which should have been a .h

gyp/core.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # Include this gypi to include all 'core' files
 # The parent gyp/gypi file must define
 #       'skia_src_path'     e.g. skia/trunk/src
 #       'skia_include_path' e.g. skia/trunk/include
 #
 # The skia build defines these in common_variables.gypi
@@ skipping 192 matching lines @@
         '<(skia_src_path)/core/SkQuadClipper.h',
         '<(skia_src_path)/core/SkRasterClip.cpp',
         '<(skia_src_path)/core/SkRasterizer.cpp',
         '<(skia_src_path)/core/SkReadBuffer.h',
         '<(skia_src_path)/core/SkReadBuffer.cpp',
         '<(skia_src_path)/core/SkReader32.h',
         '<(skia_src_path)/core/SkRecord.cpp',
         '<(skia_src_path)/core/SkRecords.cpp',
         '<(skia_src_path)/core/SkRecordDraw.cpp',
         '<(skia_src_path)/core/SkRecordOpts.cpp',
-        '<(skia_src_path)/core/SkRecordOpts.cpp',
+        '<(skia_src_path)/core/SkRecordOpts.h',
         '<(skia_src_path)/core/SkRecordPattern.h',
         '<(skia_src_path)/core/SkRecorder.cpp',
         '<(skia_src_path)/core/SkRect.cpp',
         '<(skia_src_path)/core/SkRefDict.cpp',
         '<(skia_src_path)/core/SkRegion.cpp',
         '<(skia_src_path)/core/SkRegionPriv.h',
         '<(skia_src_path)/core/SkRegion_path.cpp',
         '<(skia_src_path)/core/SkResourceCache.cpp',
         '<(skia_src_path)/core/SkRRect.cpp',
         '<(skia_src_path)/core/SkRTree.h',
@@ skipping 240 matching lines @@
         '<(skia_src_path)/pathops/SkPathOpsLine.h',
         '<(skia_src_path)/pathops/SkPathOpsPoint.h',
         '<(skia_src_path)/pathops/SkPathOpsQuad.h',
         '<(skia_src_path)/pathops/SkPathOpsRect.h',
         '<(skia_src_path)/pathops/SkPathOpsTSect.h',
         '<(skia_src_path)/pathops/SkPathOpsTypes.h',
         '<(skia_src_path)/pathops/SkPathWriter.h',
         '<(skia_src_path)/pathops/SkReduceOrder.h',
     ],
 }