Added ability to flush context to GrTextBlobCache

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index f6c3590336bb7d31340cb33e1db750560b83f70b..38ad7bf41040a9132a0772e33249a608de3299ab 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -787,6 +787,12 @@ private:
      */
     static void OverBudgetCB(void* data);
 
+    /**
+     * A callback similar to the above for use by the TextBlobCache
+     * TODO move textblob draw calls below context so we can use the call above.
+     */
+    static void TextBlobCacheOverBudgetCB(void* data);
+
     // TODO see note on createTextContext
     friend class SkGpuDevice;