Replace uses of GR_DEBUG by SK_DEBUG.

src/gpu/GrAAHairLinePathRenderer.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAAHairLinePathRenderer.h"
 
 #include "GrContext.h"
@@ skipping 148 matching lines @@
     fQuadsIndexBuffer->unref();
 }
 
 namespace {
 
 #define PREALLOC_PTARRAY(N) SkSTArray<(N),SkPoint, true>
 
 // Takes 178th time of logf on Z600 / VC2010
 int get_float_exp(float x) {
     GR_STATIC_ASSERT(sizeof(int) == sizeof(float));
-#if GR_DEBUG
+#ifdef SK_DEBUG
     static bool tested;
     if (!tested) {
         tested = true;
         SkASSERT(get_float_exp(0.25f) == -2);
         SkASSERT(get_float_exp(0.3f) == -2);
         SkASSERT(get_float_exp(0.5f) == -1);
         SkASSERT(get_float_exp(1.f) == 0);
         SkASSERT(get_float_exp(2.f) == 1);
         SkASSERT(get_float_exp(2.5f) == 1);
         SkASSERT(get_float_exp(8.f) == 3);
@@ skipping 817 matching lines @@
                                     &devBounds);
                 conics += n;
             }
         }
     }
 
     target->resetIndexSource();
 
     return true;
 }