Connect Skia PDF backend to printing subsystem.

skia/config/SkUserConfig.h

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
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     not, define this to the appropriate type.
  */
 //#define SkLONGLONG int64_t
 
 
 /*  Some envorinments do not suport writable globals (eek!). If yours does not,
     define this flag.
  */
 //#define SK_USE_RUNTIME_GLOBALS
 
+/*  If zlib is available and you want to support the flate compression
+    algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the
+    include path.
+ */
+//#define SK_ZLIB_INCLUDE <zlib.h>
+#if defined(USE_SYSTEM_ZLIB)
+#define SK_ZLIB_INCLUDE <zlib.h>
+#else
+#define SK_ZLIB_INCLUDE "third_party/zlib/zlib.h"
+#define MOZ_Z_inflate inflate
+#define MOZ_Z_inflateInit_ inflateInit_
+#define MOZ_Z_inflateEnd inflateEnd
+#define MOZ_Z_deflate deflate
+#define MOZ_Z_deflateInit_ deflateInit_
+#define MOZ_Z_deflateEnd deflateEnd
+#endif
+
+/*  Define this to allow PDF scalars above 32k.  The PDF/A spec doesn't allow
+    them, but modern PDF interpreters should handle them just fine.
+ */
+//#define SK_ALLOW_LARGE_PDF_SCALARS
+
+/*  Define this to remove dimension checks on bitmaps. Not all blits will be
+    correct yet, so this is mostly for debugging the implementation.
+ */
+//#define SK_ALLOW_OVER_32K_BITMAPS
+
 
 /*  To write debug messages to a console, skia will call SkDebugf(...) following
     printf conventions (e.g. const char* format, ...). If you want to redirect
     this to something other than printf, define yours here
  */
 //#define SkDebugf(...)  MyFunction(__VA_ARGS__)
 
 
 /*  If SK_DEBUG is defined, then you can optionally define SK_SUPPORT_UNITTEST
     which will run additional self-tests at startup. These can take a long time,
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 #endif
 
 // The default crash macro writes to badbeef which can cause some strange
 // problems. Instead, pipe this through to the logging function as a fatal
 // assertion.
 #define SK_CRASH() SkDebugf_FileLine(__FILE__, __LINE__, true, "SK_CRASH")
 
 // ===== End Chrome-specific definitions =====
 
 #endif