Update from https://crrev.com/304715

skia/skia_library.gypi

 # Copyright 2013 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.
 
 
 # This gypi file contains the Skia library.
 # In component mode (shared_lib) it is folded into a single shared library with
 # the Chrome-specific enhancements but in all other cases it is a separate lib.
 
 # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ skipping 87 matching lines @@
   '../third_party/skia/include/utils/SkDumpCanvas.h',
   '../third_party/skia/include/utils/SkEventTracer.h',
   '../third_party/skia/include/utils/SkInterpolator.h',
   '../third_party/skia/include/utils/SkLayer.h',
   '../third_party/skia/include/utils/SkMeshUtils.h',
   '../third_party/skia/include/utils/SkNinePatch.h',
   '../third_party/skia/include/utils/SkParse.h',
   '../third_party/skia/include/utils/SkParsePaint.h',
   '../third_party/skia/include/utils/SkParsePath.h',
   '../third_party/skia/include/utils/SkRandom.h',
-  '../third_party/skia/include/utils/SkWGL.h',
 
   '../third_party/skia/src/utils/SkBitmapHasher.cpp',
   '../third_party/skia/src/utils/SkBitmapHasher.h',
   '../third_party/skia/src/utils/SkBoundaryPatch.cpp',
   '../third_party/skia/src/utils/SkFrontBufferedStream.cpp',
   '../third_party/skia/src/utils/SkCamera.cpp',
   '../third_party/skia/src/utils/SkCanvasStack.h',
   '../third_party/skia/src/utils/SkCubicInterval.cpp',
   '../third_party/skia/src/utils/SkCullPoints.cpp',
   '../third_party/skia/src/utils/SkDumpCanvas.cpp',
@@ skipping 63 matching lines @@
         '<@(skgpu_null_gl_sources)',
         '<@(skgpu_sources)',
       ],
       'include_dirs': [
         '../third_party/skia/include/gpu',
         '../third_party/skia/src/gpu',
       ],
     }],
     ['skia_support_pdf == 0', {
       'sources/': [
-        ['exclude', '../third_party/skia/src/pdf/']
+        ['exclude', '../third_party/skia/src/doc/SkDocument_PDF.cpp'],
+        ['exclude', '../third_party/skia/src/pdf/'],
       ],
     }],
     ['skia_support_pdf == 1', {
       'dependencies': [
         '../third_party/sfntly/sfntly.gyp:sfntly',
       ],
     }],
 
     [ 'OS == "win"', {
       'sources!': [
@@ skipping 170 matching lines @@
       '../third_party/skia/include/pdf',
       '../third_party/skia/include/gpu',
       '../third_party/skia/include/lazy',
       '../third_party/skia/include/pathops',
       '../third_party/skia/include/pipe',
       '../third_party/skia/include/ports',
       '../third_party/skia/include/utils',
     ],
   },
 }