Refactor GrBufferAllocPools to use resource cache

src/gpu/GrResourceProvider.h

Index: src/gpu/GrResourceProvider.h
diff --git a/src/gpu/GrResourceProvider.h b/src/gpu/GrResourceProvider.h
index 2962ad37885c00f9dc618dc432a5d154377dd1c3..f0b79b97f5ebbf8d60aa62091aaeeec23a7fecf8 100644
--- a/src/gpu/GrResourceProvider.h
+++ b/src/gpu/GrResourceProvider.h
@@ -86,6 +86,9 @@ public:
     using GrTextureProvider::findAndRefResourceByUniqueKey;
     using GrTextureProvider::abandon;
 
+    GrIndexBuffer* getIndexBuffer(size_t size, bool dynamic, bool calledDuringFlush);
+    GrVertexBuffer* getVertexBuffer(size_t size, bool dynamic, bool calledDuringFlush);
+
 private:
     const GrIndexBuffer* createInstancedIndexBuffer(const uint16_t* pattern,
                                                     int patternSize,