Roll protocol to r1648091

Author: devtools-bot

changelog.md

@@ -1,5 +1,39 @@
 
 
+## Roll protocol to r1648091 — _2026-06-17T06:06:09.000Z_
+######  Diff: [`8ac781c...fec78bf`](https://github.com/ChromeDevTools/devtools-protocol/compare/8ac781c...fec78bf)
+
+```diff
+@@ domains/CSS.pdl:82 @@ experimental domain CSS
+       # Specificity of the selector.
+       experimental optional Specificity specificity
+ 
++  # Contribution of an individual simple selector to specificity.
++  experimental type SpecificityComponent extends object
++    properties
++      # The simple selector text that contributes to specificity.
++      string text
++      # The a component contribution.
++      integer a
++      # The b component contribution.
++      integer b
++      # The c component contribution.
++      integer c
++
+   # Specificity:
+   # https://drafts.csswg.org/selectors/#specificity-rules
+   experimental type Specificity extends object
+@@ -93,6 +105,8 @@ experimental domain CSS
+       integer b
+       # The c component, which represents the number of type selectors and pseudo-elements.
+       integer c
++      # Per-simple-selector contributions used to explain this specificity.
++      experimental optional array of SpecificityComponent components
+ 
+   # Selector list data.
+   type SelectorList extends object
+```
+
 ## Roll protocol to r1646372 — _2026-06-13T05:51:22.000Z_
 ######  Diff: [`838337e...1857dd0`](https://github.com/ChromeDevTools/devtools-protocol/compare/838337e...1857dd0)
 
@@ -42849,27 +42883,4 @@ index 4754f17c..8dad9c98 100644
        optional any value
        optional string objectId
        # Set if value reference met more then once during serialization. In such
-```
-
-## Roll protocol to r1195207 — _2023-09-12T04:25:54.000Z_
-######  Diff: [`322248d...c0f98d9`](https://github.com/ChromeDevTools/devtools-protocol/compare/322248d...c0f98d9)
-
-```diff
-@@ browser_protocol.pdl:1015 @@ experimental domain Autofill
-       # fields and values defining an address.
-       array of AddressField fields
- 
--  # Defines how an address can be displayed like in chrome://settings/addresses. 
-+  # Defines how an address can be displayed like in chrome://settings/addresses.
-   # Address UI is a two dimensional array, each inner array is an "address information line", and when rendered in a UI surface should be displayed as such.
-   # The following address UI for instance:
-   # [[{name: "GIVE_NAME", value: "Jon"}, {name: "FAMILY_NAME", value: "Doe"}], [{name: "CITY", value: "Munich"}, {name: "ZIP", value: "81456"}]]
-@@ -1053,7 +1053,7 @@ experimental domain Autofill
-     parameters
-       # Information about the fields that were filled
-       array of FilledField filledFields
--      # An UI representation of the address used to fill the form. 
-+      # An UI representation of the address used to fill the form.
-       # Consists of a 2D array where each child represents an address/profile line.
-       AddressUI addressUi
 ```

json/browser_protocol.json

@@ -4432,6 +4432,34 @@
                         }
                     ]
                 },
+                {
+                    "id": "SpecificityComponent",
+                    "description": "Contribution of an individual simple selector to specificity.",
+                    "experimental": true,
+                    "type": "object",
+                    "properties": [
+                        {
+                            "name": "text",
+                            "description": "The simple selector text that contributes to specificity.",
+                            "type": "string"
+                        },
+                        {
+                            "name": "a",
+                            "description": "The a component contribution.",
+                            "type": "integer"
+                        },
+                        {
+                            "name": "b",
+                            "description": "The b component contribution.",
+                            "type": "integer"
+                        },
+                        {
+                            "name": "c",
+                            "description": "The c component contribution.",
+                            "type": "integer"
+                        }
+                    ]
+                },
                 {
                     "id": "Specificity",
                     "description": "Specificity:\nhttps://drafts.csswg.org/selectors/#specificity-rules",
@@ -4452,6 +4480,16 @@
                             "name": "c",
                             "description": "The c component, which represents the number of type selectors and pseudo-elements.",
                             "type": "integer"
+                        },
+                        {
+                            "name": "components",
+                            "description": "Per-simple-selector contributions used to explain this specificity.",
+                            "experimental": true,
+                            "optional": true,
+                            "type": "array",
+                            "items": {
+                                "$ref": "SpecificityComponent"
+                            }
                         }
                     ]
                 },

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "devtools-protocol",
-  "version": "0.0.1647336",
+  "version": "0.0.1648091",
   "description": "The Chrome DevTools Protocol JSON",
   "repository": "https://github.com/ChromeDevTools/devtools-protocol",
   "author": "The Chromium Authors",

package.json

@@ -82,6 +82,18 @@ experimental domain CSS
       # Specificity of the selector.
       experimental optional Specificity specificity
 
+  # Contribution of an individual simple selector to specificity.
+  experimental type SpecificityComponent extends object
+    properties
+      # The simple selector text that contributes to specificity.
+      string text
+      # The a component contribution.
+      integer a
+      # The b component contribution.
+      integer b
+      # The c component contribution.
+      integer c
+
   # Specificity:
   # https://drafts.csswg.org/selectors/#specificity-rules
   experimental type Specificity extends object
@@ -93,6 +105,8 @@ experimental domain CSS
       integer b
       # The c component, which represents the number of type selectors and pseudo-elements.
       integer c
+      # Per-simple-selector contributions used to explain this specificity.
+      experimental optional array of SpecificityComponent components
 
   # Selector list data.
   type SelectorList extends object

pdl/domains/CSS.pdl

@@ -5153,6 +5153,29 @@ export namespace Protocol {
             specificity?: Specificity;
         }
 
+        /**
+         * Contribution of an individual simple selector to specificity.
+         * @experimental
+         */
+        export interface SpecificityComponent {
+            /**
+             * The simple selector text that contributes to specificity.
+             */
+            text: string;
+            /**
+             * The a component contribution.
+             */
+            a: integer;
+            /**
+             * The b component contribution.
+             */
+            b: integer;
+            /**
+             * The c component contribution.
+             */
+            c: integer;
+        }
+
         /**
          * Specificity:
          * https://drafts.csswg.org/selectors/#specificity-rules
@@ -5172,6 +5195,11 @@ export namespace Protocol {
              * The c component, which represents the number of type selectors and pseudo-elements.
              */
             c: integer;
+            /**
+             * Per-simple-selector contributions used to explain this specificity.
+             * @experimental
+             */
+            components?: SpecificityComponent[];
         }
 
         /**