Fix text-as-path with skshader on gpu

Review URL: http://codereview.appspot.com/4576057/



git-svn-id: http://skia.googlecode.com/svn/trunk@1575 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/include/GrTextContext.h b/gpu/include/GrTextContext.h
index b7a690e..c4181c6 100644
--- a/gpu/include/GrTextContext.h
+++ b/gpu/include/GrTextContext.h
@@ -51,6 +51,7 @@
     GrTextStrike*   fStrike;
 
     inline void flushGlyphs();
+    void setupDrawTarget();
 
     enum {
         kMinRequestedGlyphs      = 1,