Remove GrDrawState::setTexture/getTexture

Review URL: http://codereview.appspot.com/6455051/



git-svn-id: http://skia.googlecode.com/svn/trunk@4826 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/GrSamplerState.h b/include/gpu/GrSamplerState.h
index 04fbe00..dcd5b66 100644
--- a/include/gpu/GrSamplerState.h
+++ b/include/gpu/GrSamplerState.h
@@ -179,7 +179,7 @@
         GrSafeAssign(fCustomStage, stage);
         return stage;
     }
-    GrCustomStage* getCustomStage() const { return fCustomStage; }
+    const GrCustomStage* getCustomStage() const { return fCustomStage; }
 
 private:
     GrTextureParams     fTextureParams;