Replace uses of GR_DEBUG by SK_DEBUG.

BUG=None
R=bsalomon@google.com, robertphillips@google.com

Author: tfarina@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23137022

git-svn-id: http://skia.googlecode.com/svn/trunk@10978 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrResourceCache.h b/src/gpu/GrResourceCache.h
index 4338d4a..5df17de 100644
--- a/src/gpu/GrResourceCache.h
+++ b/src/gpu/GrResourceCache.h
@@ -148,7 +148,7 @@
     GrResource* resource() const { return fResource; }
     const GrResourceKey& key() const { return fKey; }
 
-#if GR_DEBUG
+#ifdef SK_DEBUG
     void validate() const;
 #else
     void validate() const {}
@@ -340,7 +340,7 @@
      */
     void purgeAsNeeded(int extraCount = 0, size_t extraBytes = 0);
 
-#if GR_DEBUG
+#ifdef SK_DEBUG
     void validate() const;
 #else
     void validate() const {}
@@ -367,7 +367,7 @@
     typedef SkTInternalLList<GrResourceEntry> EntryList;
     EntryList      fList;
 
-#if GR_DEBUG
+#ifdef SK_DEBUG
     // These objects cannot be returned by a search
     EntryList      fExclusiveList;
 #endif
@@ -397,14 +397,14 @@
 
     void internalPurge(int extraCount, size_t extraBytes);
 
-#if GR_DEBUG
+#ifdef SK_DEBUG
     static size_t countBytes(const SkTInternalLList<GrResourceEntry>& list);
 #endif
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
-#if GR_DEBUG
+#ifdef SK_DEBUG
     class GrAutoResourceCacheValidate {
     public:
         GrAutoResourceCacheValidate(GrResourceCache* cache) : fCache(cache) {