Added resource cache debug output to help track changes

http://codereview.appspot.com/6463079/



git-svn-id: http://skia.googlecode.com/svn/trunk@5220 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index dbb404f..077493f 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -752,6 +752,10 @@
                                     bool antiAlias,
                                     bool allowSW);
 
+#ifdef GR_DEBUG
+    void printCacheStats() const;
+#endif
+
 private:
     // Used to indicate whether a draw should be performed immediately or queued in fDrawBuffer.
     enum BufferedDraw {