Replace uses of GR_DEBUG by SK_DEBUG.

include/gpu/GrTextureAccess.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextureAccess_DEFINED
 #define GrTextureAccess_DEFINED
 
@@ skipping 131 matching lines @@
     void reset(GrTexture*,
                GrTextureParams::FilterMode = GrTextureParams::kNone_FilterMode,
                SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode);
     void reset(GrTexture*, const char* swizzle, const GrTextureParams&);
     void reset(GrTexture*,
                const char* swizzle,
                GrTextureParams::FilterMode = GrTextureParams::kNone_FilterMode,
                SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode);
 
     bool operator== (const GrTextureAccess& other) const {
-#if GR_DEBUG
+#ifdef SK_DEBUG
         // below assumes all chars in fSwizzle are initialized even if string is < 4 chars long.
         SkASSERT(memcmp(fSwizzle, other.fSwizzle, sizeof(fSwizzle)-1) ==
                  strcmp(fSwizzle, other.fSwizzle));
 #endif
         return fParams == other.fParams &&
                (fTexture.get() == other.fTexture.get()) &&
                (0 == memcmp(fSwizzle, other.fSwizzle, sizeof(fSwizzle)-1));
     }
 
     bool operator!= (const GrTextureAccess& other) const { return !(*this == other); }
@@ skipping 16 matching lines @@
 
     GrTextureParams         fParams;
     SkAutoTUnref<GrTexture> fTexture;
     uint32_t                fSwizzleMask;
     char                    fSwizzle[5];
 
     typedef GrNoncopyable INHERITED;
 };
 
 #endif