Separated Inst counting from the SK_DEBUG #define (now SK_ENABLE_INST_COUNT)

http://codereview.appspot.com/6353047/



git-svn-id: http://skia.googlecode.com/svn/trunk@4376 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/common.gypi b/gyp/common.gypi
index a9b274d..717e6eb 100644
--- a/gyp/common.gypi
+++ b/gyp/common.gypi
@@ -68,6 +68,7 @@
       'Debug': {
         'defines': [
           'SK_DEBUG',
+          'SK_ENABLE_INST_COUNT',
           'GR_DEBUG=1',
         ],
       },