Revert of Move instanced index buffer creation to flush time

src/gpu/GrAARectRenderer.h

Index: src/gpu/GrAARectRenderer.h
diff --git a/src/gpu/GrAARectRenderer.h b/src/gpu/GrAARectRenderer.h
index 023eadc34fdaa104502ce7d55ecfd8910c8e5f00..3193f4bc3a4d83d4d9a522be22bfa36e2b56939e 100644
--- a/src/gpu/GrAARectRenderer.h
+++ b/src/gpu/GrAARectRenderer.h
@@ -16,6 +16,7 @@
 
 class GrClip;
 class GrDrawTarget;
+class GrGpu;
 class GrIndexBuffer;
 class GrPipelineBuilder;
 
@@ -25,6 +26,19 @@
 class GrAARectRenderer : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(GrAARectRenderer)
+
+    GrAARectRenderer(GrGpu* gpu)
+    : fGpu(gpu)
+    , fAAFillRectIndexBuffer(NULL)
+    , fAAMiterStrokeRectIndexBuffer(NULL)
+    , fAABevelStrokeRectIndexBuffer(NULL) {
+    }
+
+    void reset();
+
+    ~GrAARectRenderer() {
+        this->reset();
+    }
 
     // TODO: potentialy fuse the fill & stroke methods and differentiate
     // between them by passing in stroke (==NULL means fill).
@@ -70,6 +84,11 @@
                               const SkRect& devInside,
                               bool miterStroke);
 
+    GrGpu*                      fGpu;
+    GrIndexBuffer*              fAAFillRectIndexBuffer;
+    GrIndexBuffer*              fAAMiterStrokeRectIndexBuffer;
+    GrIndexBuffer*              fAABevelStrokeRectIndexBuffer;
+
     typedef SkRefCnt INHERITED;
 };