Replace uses of GR_DEBUG by SK_DEBUG.

src/gpu/gl/GrGLProgramDesc.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLProgramDesc_DEFINED
 #define GrGLProgramDesc_DEFINED
 
 #include "GrGLEffect.h"
 #include "GrDrawState.h"
 #include "GrGLShaderBuilder.h"
 
 class GrGpuGL;
 
-// optionally compile the experimental GS code. Set to GR_DEBUG so that debug build bots will
-// execute the code.
-#define GR_GL_EXPERIMENTAL_GS GR_DEBUG
+#ifdef SK_DEBUG
+  // Optionally compile the experimental GS code. Set to SK_DEBUG so that debug build bots will
+  // execute the code.
+  #define GR_GL_EXPERIMENTAL_GS 1
+#else
+  #define GR_GL_EXPERIMENTAL_GS 0
+#endif
 
 
 /** This class describes a program to generate. It also serves as a program cache key. Very little
     of this is GL-specific. There is the generation of GrGLEffect::EffectKeys and the dst-read part
     of the key set by GrGLShaderBuilder. If the interfaces that set those portions were abstracted
     to be API-neutral then so could this class. */
 class GrGLProgramDesc {
 public:
     GrGLProgramDesc() : fInitialized(false) {}
     GrGLProgramDesc(const GrGLProgramDesc& desc) { *this = desc; }
@@ skipping 182 matching lines @@
     SkAutoSMalloc<kPreAllocSize> fKey;
     bool fInitialized;
 
     // GrGLProgram and GrGLShaderBuilder read the private fields to generate code. TODO: Move all
     // code generation to GrGLShaderBuilder (and maybe add getters rather than friending).
     friend class GrGLProgram;
     friend class GrGLShaderBuilder;
 };
 
 #endif