Move instanced index buffer creation to flush time

gm/beziereffects.cpp

Index: gm/beziereffects.cpp
diff --git a/gm/beziereffects.cpp b/gm/beziereffects.cpp
index 182d71aaf6749c52a7bd8b50cc8bdeb4137bdb36..656842289867710a072b6ae1456d409d0cbd9a93 100644
--- a/gm/beziereffects.cpp
+++ b/gm/beziereffects.cpp
@@ -16,6 +16,7 @@
 #include "GrBufferAllocPool.h"
 #include "GrContext.h"
 #include "GrPathUtils.h"
+#include "GrResourceProvider.h"
 #include "GrTest.h"
 #include "GrTestBatch.h"
 #include "SkColorPriv.h"
@@ -66,17 +67,18 @@ private:
     }
 
     void onGenerateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {
-        size_t vertexStride = this->geometryProcessor()->getVertexStride();
+        SkAutoTUnref<const GrIndexBuffer> indexBuffer(
+            batchTarget->resourceProvider()->refQuadIndexBuffer());
 
+        size_t vertexStride = this->geometryProcessor()->getVertexStride();
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
-
         void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
                                                               kVertsPerCubic,
                                                               &vertexBuffer,
                                                               &firstVertex);
 
-        if (!vertices || !batchTarget->quadIndexBuffer()) {
+        if (!vertices || !indexBuffer) {
             SkDebugf("Could not allocate buffers\n");
             return;
         }
@@ -100,7 +102,7 @@ private:
         drawInfo.setVertexCount(kVertsPerCubic);
         drawInfo.setStartIndex(0);
         drawInfo.setIndexCount(kIndicesPerCubic);
-        drawInfo.setIndexBuffer(batchTarget->quadIndexBuffer());
+        drawInfo.setIndexBuffer(indexBuffer);
         batchTarget->draw(drawInfo);
     }
 
@@ -473,8 +475,10 @@ private:
     }
 
     void onGenerateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {
-        size_t vertexStride = this->geometryProcessor()->getVertexStride();
+        SkAutoTUnref<const GrIndexBuffer> indexBuffer(
+            batchTarget->resourceProvider()->refQuadIndexBuffer());
 
+        size_t vertexStride = this->geometryProcessor()->getVertexStride();
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
 
@@ -483,7 +487,7 @@ private:
                                                               &vertexBuffer,
                                                               &firstVertex);
 
-        if (!vertices || !batchTarget->quadIndexBuffer()) {
+        if (!vertices || !indexBuffer) {
             SkDebugf("Could not allocate buffers\n");
             return;
         }
@@ -505,7 +509,7 @@ private:
         drawInfo.setVertexCount(kVertsPerCubic);
         drawInfo.setStartIndex(0);
         drawInfo.setIndexCount(kIndicesPerCubic);
-        drawInfo.setIndexBuffer(batchTarget->quadIndexBuffer());
+        drawInfo.setIndexBuffer(indexBuffer);
         batchTarget->draw(drawInfo);
     }