Move ParamsBindList to Descriptor.* (#4119)

Summary:
Pull Request resolved: #4119

`ParamsBindList` wraps a list of `BufferBindInfo`s, which is closely associated to Vulkan descriptor sets.
ghstack-source-id: 232319221
exported-using-ghexport

Reviewed By: SS-JIA

Differential Revision: D59281547

fbshipit-source-id: e9772f1fadc1698077912eeaf6980d47ed862230

Author: jorgep31415

backends/vulkan/runtime/api/Context.cpp

@@ -274,16 +274,5 @@ UniformParamsBuffer& UniformParamsBuffer::operator=(
   return *this;
 }
 
-ParamsBindList::ParamsBindList(
-    std::initializer_list<const BufferBindInfo> init_list) {
-  bind_infos.resize(init_list.size());
-  std::copy(init_list.begin(), init_list.end(), bind_infos.begin());
-}
-
-void ParamsBindList::append(const ParamsBindList& other) {
-  bind_infos.insert(
-      bind_infos.end(), other.bind_infos.begin(), other.bind_infos.end());
-}
-
 } // namespace api
 } // namespace vkcompute

backends/vulkan/runtime/api/Context.h

@@ -266,14 +266,6 @@ class UniformParamsBuffer final {
   }
 };
 
-struct ParamsBindList final {
-  std::vector<BufferBindInfo> bind_infos;
-
-  ParamsBindList(std::initializer_list<const BufferBindInfo> init_list);
-
-  void append(const ParamsBindList& other);
-};
-
 class StorageBuffer final {
  private:
   Context* context_p_;

backends/vulkan/runtime/api/Descriptor.cpp

@@ -16,7 +16,7 @@ namespace vkcompute {
 namespace api {
 
 //
-// BufferBinding
+// BufferBindInfo
 //
 
 BufferBindInfo::BufferBindInfo()
@@ -27,6 +27,21 @@ BufferBindInfo::BufferBindInfo(const VulkanBuffer& buffer_p)
       offset(buffer_p.mem_offset()),
       range(buffer_p.mem_range()) {}
 
+//
+// ParamsBindList
+//
+
+ParamsBindList::ParamsBindList(
+    std::initializer_list<const BufferBindInfo> init_list) {
+  bind_infos.resize(init_list.size());
+  std::copy(init_list.begin(), init_list.end(), bind_infos.begin());
+}
+
+void ParamsBindList::append(const ParamsBindList& other) {
+  bind_infos.insert(
+      bind_infos.end(), other.bind_infos.begin(), other.bind_infos.end());
+}
+
 //
 // DescriptorSet
 //

backends/vulkan/runtime/api/Descriptor.h

@@ -36,6 +36,14 @@ struct BufferBindInfo final {
   BufferBindInfo(const VulkanBuffer& buffer_p);
 };
 
+struct ParamsBindList final {
+  std::vector<BufferBindInfo> bind_infos;
+
+  ParamsBindList(std::initializer_list<const BufferBindInfo> init_list);
+
+  void append(const ParamsBindList& other);
+};
+
 class DescriptorSet final {
  public:
   explicit DescriptorSet(VkDevice, VkDescriptorSet, ShaderLayout::Signature);