Rename BindGroupBinding -> BindGroupLayoutBinding

This makes the name match WebGPU's IDL

BUG=dawn:3

Change-Id: I1338fa07580ba8c0f6700b7765fb7389018a4126
Reviewed-on: https://dawn-review.googlesource.com/c/2801
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/dawn.json b/dawn.json
index 0437b81..b43a7fe 100644
--- a/dawn.json
+++ b/dawn.json
@@ -70,7 +70,7 @@
     "bind group layout": {
         "category": "object"
     },
-    "bind group binding": {
+    "bind group layout binding": {
         "category": "structure",
         "extensible": false,
         "members": [
@@ -84,7 +84,7 @@
         "extensible": true,
         "members": [
             {"name": "num bindings", "type": "uint32_t"},
-            {"name": "bindings", "type": "bind group binding", "annotation": "const*", "length": "num bindings"}
+            {"name": "bindings", "type": "bind group layout binding", "annotation": "const*", "length": "num bindings"}
         ]
     },
     "binding type": {