Add resource tracking output and command buffer recycling

src/gpu/vk/GrVkRenderPass.h

Index: src/gpu/vk/GrVkRenderPass.h
diff --git a/src/gpu/vk/GrVkRenderPass.h b/src/gpu/vk/GrVkRenderPass.h
index 997989d07318738d662f2403b3e94671a11f1614..5438a10dfc8b568ef82b43390290c41cb82e7a23 100644
--- a/src/gpu/vk/GrVkRenderPass.h
+++ b/src/gpu/vk/GrVkRenderPass.h
@@ -120,6 +120,12 @@ public:
 
     void genKey(GrProcessorKeyBuilder* b) const;
 
+#ifdef SK_TRACE_VK_RESOURCES
+    void dumpInfo() const override {
+        SkDebugf("GrVkRenderPass: %d (%d refs)\n", fRenderPass, this->getRefCnt());
+    }
+#endif
+
 private:
     GrVkRenderPass(const GrVkRenderPass&);