swapchain: Implement VK_KHR_surface_protected_capabilities

Bug: 221490496
Test: Test with ANGLE EGLConfig-generation code
Change-Id: Id01e677175a2cf98f4d893e21f3c654375772150
Merged-In: Id01e677175a2cf98f4d893e21f3c654375772153
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 9be2824..ec67312 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -848,6 +848,12 @@
                         .supportedUsageFlags;
             } break;
 
+            case VK_STRUCTURE_TYPE_SURFACE_PROTECTED_CAPABILITIES_KHR: {
+                VkSurfaceProtectedCapabilitiesKHR* protected_caps =
+                    reinterpret_cast<VkSurfaceProtectedCapabilitiesKHR*>(caps);
+                protected_caps->supportsProtected = VK_TRUE;
+            } break;
+
             default:
                 // Ignore all other extension structs
                 break;