layers: GH618, Correct WSI exension flag usage

Object_tracker had no notion of individual WSI extension flags,
and unique_objects was not checking them.

Change-Id: I93c1aa0c324aa602717f36e2975120dba8bc364e
diff --git a/layers/object_tracker.h b/layers/object_tracker.h
index 333775a..7c00c24 100644
--- a/layers/object_tracker.h
+++ b/layers/object_tracker.h
@@ -89,11 +89,17 @@
           tmp_dbg_create_infos(nullptr), tmp_callbacks(nullptr){};
 };
 
-struct instExts {
+struct instance_extension_enables {
     bool wsi_enabled;
+    bool xlib_enabled;
+    bool xcb_enabled;
+    bool wayland_enabled;
+    bool mir_enabled;
+    bool android_enabled;
+    bool win32_enabled;
 };
 
-static std::unordered_map<void *, struct instExts> instanceExtMap;
+static std::unordered_map<void *, struct instance_extension_enables> instanceExtMap;
 static std::unordered_map<void *, layer_data *> layer_data_map;
 static device_table_map object_tracker_device_table_map;
 static instance_table_map object_tracker_instance_table_map;
@@ -135,7 +141,6 @@
 }
 
 static void createInstanceRegisterExtensions(const VkInstanceCreateInfo *pCreateInfo, VkInstance instance) {
-    uint32_t i;
     VkLayerInstanceDispatchTable *pDisp = get_dispatch_table(object_tracker_instance_table_map, instance);
     PFN_vkGetInstanceProcAddr gpa = pDisp->GetInstanceProcAddr;
 
@@ -178,11 +183,44 @@
     pDisp->CreateAndroidSurfaceKHR = (PFN_vkCreateAndroidSurfaceKHR)gpa(instance, "vkCreateAndroidSurfaceKHR");
 #endif // VK_USE_PLATFORM_ANDROID_KHR
 
-    instanceExtMap[pDisp].wsi_enabled = false;
-    for (i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
-        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_SURFACE_EXTENSION_NAME) == 0)
+    instanceExtMap[pDisp] = {};
+
+    for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_SURFACE_EXTENSION_NAME) == 0) {
             instanceExtMap[pDisp].wsi_enabled = true;
+        }
+#ifdef VK_USE_PLATFORM_XLIB_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_XLIB_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].xlib_enabled = true;
+        }
+#endif
+#ifdef VK_USE_PLATFORM_XCB_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_XCB_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].xcb_enabled = true;
+        }
+#endif
+#ifdef VK_USE_PLATFORM_WAYLAND_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].wayland_enabled = true;
+        }
+#endif
+#ifdef VK_USE_PLATFORM_MIR_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_MIR_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].mir_enabled = true;
+        }
+#endif
+#ifdef VK_USE_PLATFORM_ANDROID_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_ANDROID_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].android_enabled = true;
+        }
+#endif
+#ifdef VK_USE_PLATFORM_WIN32_KHR
+        if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], VK_KHR_WIN32_SURFACE_EXTENSION_NAME) == 0) {
+            instanceExtMap[pDisp].win32_enabled = true;
+        }
+#endif
     }
+
 }
 
 // Indicate device or instance dispatch table type