Revert of Multi-string shaders

include/gpu/gl/GrGLSLPrettyPrint.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef GrGLSLPrettyPrint_DEFINED
 #define GrGLSLPrettyPrint_DEFINED
 
 #include "SkString.h"
 
 namespace GrGLSLPrettyPrint {
-    SkString PrettyPrintGLSL(const char** strings,
-                             int* lengths,
-                             int count,
-                             bool countlines);
+    SkString PrettyPrintGLSL(const SkString& input, bool countlines);
 };
 
 #endif /* GRGLPRETTYPRINTSL_H_ */