Version 2 of the Instance Counting system. This one simplifies the print out of information.

http://codereview.appspot.com/6296069/



git-svn-id: http://skia.googlecode.com/svn/trunk@4255 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/GrRenderTarget.h b/include/gpu/GrRenderTarget.h
index 4a2c254..c26ca4b 100644
--- a/include/gpu/GrRenderTarget.h
+++ b/include/gpu/GrRenderTarget.h
@@ -33,6 +33,7 @@
  */
 class GrRenderTarget : public GrResource {
 public:
+    SK_DECLARE_INST_COUNT(GrRenderTarget)
 
     /**
      * @return the width of the rendertarget