Added print out of SkShader information to debugger

https://codereview.appspot.com/7105045/



git-svn-id: http://skia.googlecode.com/svn/trunk@7201 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkFilterShader.h b/src/core/SkFilterShader.h
index ded3125..be19640 100644
--- a/src/core/SkFilterShader.h
+++ b/src/core/SkFilterShader.h
@@ -24,6 +24,7 @@
     virtual void shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;
     virtual void shadeSpan16(int x, int y, uint16_t[], int count) SK_OVERRIDE;
 
+    SK_DEVELOPER_TO_STRING()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkFilterShader)
 
 protected: