[WPT/mixed-content] Remove context_nesting

The values are always `top-level` and not used anywhere.

Bug: 906850
Change-Id: Ia89f9b65cac935d65287a702f61f292513ca6189
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1717487
Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org>
Reviewed-by: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681068}

third_party/blink/web_tests/external/wpt/mixed-content/generic/tools/generate.py

@@ -17,7 +17,7 @@ class MixedContentConfig(object):
                                  '%(delivery_type)s/' + \
                                  '%(delivery_value)s/' + \
                                  '%(origin)s/' + \
-                                 '%(context_nesting)s/' + \
+                                 'top-level/' + \
                                  '%(redirection)s/'
 
         self.test_file_path_pattern = self.selection_pattern + \
@@ -28,7 +28,7 @@ class MixedContentConfig(object):
 delivery_value: %(delivery_value)s
 origin: %(origin)s
 source_scheme: %(source_protocol)s
-context_nesting: %(context_nesting)s
+context_nesting: top-level
 redirection: %(redirection)s
 subresource: %(subresource)s
 expectation: %(expectation)s

third_party/blink/web_tests/external/wpt/mixed-content/generic/tools/spec_validator.py

@@ -127,8 +127,7 @@ def validate(spec_json, details):
     details['object'] = test_expansion_schema
     assert_contains_only_fields(test_expansion_schema, [
         'expansion', 'source_protocol', 'delivery_type', 'delivery_value',
-        'context_nesting', 'redirection', 'subresource', 'origin',
-        'expectation'
+        'redirection', 'subresource', 'origin', 'expectation'
     ])
     # Validate excluded tests.
     details['object'] = excluded_tests

third_party/blink/web_tests/external/wpt/mixed-content/spec.src.json

@@ -12,7 +12,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": "opt-in",
-          "context_nesting": "top-level",
           "redirection": "*",
           "subresource": {
             "blockable": [],
@@ -27,7 +26,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": null,
-          "context_nesting": "top-level",
           "redirection": "*",
           "subresource": {
             "blockable": [],
@@ -50,7 +48,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": "opt-in",
-          "context_nesting": "top-level",
           "redirection": "*",
           "subresource": {
             "blockable": "*",
@@ -65,7 +62,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": null,
-          "context_nesting": "top-level",
           "redirection": "*",
           "subresource": {
             "blockable": "*",
@@ -80,7 +76,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": "*",
-          "context_nesting": "top-level",
           "redirection": "*",
           "subresource": {
             "blockable": "websocket-request",
@@ -103,7 +98,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": "*",
-          "context_nesting": "top-level",
           "redirection": ["no-redirect", "keep-scheme-redirect"],
           "subresource": {
             "blockable": "*",
@@ -118,7 +112,6 @@
           "source_protocol": "https",
           "delivery_type": "*",
           "delivery_value": "*",
-          "context_nesting": "top-level",
           "redirection": ["no-redirect", "keep-scheme-redirect"],
           "subresource": {
             "blockable": "websocket-request",
@@ -140,7 +133,6 @@
       "source_protocol": "*",
       "delivery_type": "http-rp",
       "delivery_value": null,
-      "context_nesting": "*",
       "redirection": "*",
       "subresource": {
         "blockable": "*",
@@ -155,7 +147,6 @@
       "source_protocol": "*",
       "delivery_type": "*",
       "delivery_value": "*",
-      "context_nesting": "*",
       "redirection": "*",
       "subresource": {
         "blockable": [
@@ -172,7 +163,6 @@
       "source_protocol": "*",
       "delivery_type": "*",
       "delivery_value": "*",
-      "context_nesting": "*",
       "redirection": "*",
       "subresource": {
         "blockable": [
@@ -194,7 +184,6 @@
       "source_protocol": "*",
       "delivery_type": "meta",
       "delivery_value": "opt-in",
-      "context_nesting": "*",
       "redirection": ["keep-scheme-redirect", "swap-scheme-redirect"],
       "subresource": {
         "blockable": "*",
@@ -227,10 +216,6 @@
       "keep-scheme-redirect",
       "swap-scheme-redirect"
     ],
-    "context_nesting": [
-      "top-level",
-      "sub-level"
-    ],
     "origin": [
       "same-host-https",
       "same-host-http",