Fix a bunch of memory issues in Vulkan

src/gpu/vk/GrVkPipelineStateBuilder.cpp

Index: src/gpu/vk/GrVkPipelineStateBuilder.cpp
diff --git a/src/gpu/vk/GrVkPipelineStateBuilder.cpp b/src/gpu/vk/GrVkPipelineStateBuilder.cpp
index 3ea9e1b5d2a01ea0ed4c7aef8784403f4474d552..2bd80033dd885bf71a1013bb3c848530a6861cdf 100644
--- a/src/gpu/vk/GrVkPipelineStateBuilder.cpp
+++ b/src/gpu/vk/GrVkPipelineStateBuilder.cpp
@@ -284,6 +284,7 @@ GrVkPipelineState* GrVkPipelineStateBuilder::finalize(GrPrimitiveType primitiveT
                                                                    nullptr));
         GR_VK_CALL(fGpu->vkInterface(), DestroyDescriptorSetLayout(fGpu->device(), dsLayout[1],
                                                                    nullptr));
+        this->cleanupFragmentProcessors();
         return nullptr;
     }