Add support to dump font cache texture for debug purposes

R=robertphillips@google.com, bsalomon@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/25736002

git-svn-id: http://skia.googlecode.com/svn/trunk/include@11579 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/GrContext.h b/gpu/GrContext.h
index 7a42677..5b25fe4 100644
--- a/gpu/GrContext.h
+++ b/gpu/GrContext.h
@@ -628,6 +628,10 @@
      */
     void resolveRenderTarget(GrRenderTarget* target);
 
+#ifdef SK_DEVELOPER
+    void dumpFontCache() const;
+#endif
+
     ///////////////////////////////////////////////////////////////////////////
     // Helpers