DevTools: validate protocol input parameters.

third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt

Index: third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt b/third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt
index e53ea7e049c90ffd9cbe354a0f7c043085e1959a..e88ced9474b098df1f1f68bff5c0ea7a6cb57d70 100644
--- a/third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesModal-expected.txt
@@ -7,10 +7,6 @@ Non-hidden element inside dialog
     "accessibilityNode": {
       "nodeId": "<string>",
       "ignored": true,
-      "role": {
-        "type": "internalRole",
-        "value": "Div"
-      },
       "ignoredReasons": [
         {
           "name": "activeModalDialog",
@@ -24,7 +20,11 @@ Non-hidden element inside dialog
             ]
           }
         }
-      ]
+      ],
+      "role": {
+        "type": "internalRole",
+        "value": "Div"
+      }
     }
   }
 }
@@ -38,7 +38,6 @@ Non-hidden element inside dialog
         "type": "role",
         "value": "dialog"
       },
-      "properties": [],
       "name": {
         "type": "computedString",
         "value": "",
@@ -56,7 +55,8 @@ Non-hidden element inside dialog
             "attribute": "title"
           }
         ]
-      }
+      },
+      "properties": []
     }
   }
 }
@@ -70,7 +70,6 @@ Non-hidden element inside dialog
         "type": "internalRole",
         "value": "Div"
       },
-      "properties": [],
       "name": {
         "type": "computedString",
         "value": "",
@@ -88,7 +87,8 @@ Non-hidden element inside dialog
             "attribute": "title"
           }
         ]
-      }
+      },
+      "properties": []
     }
   }
 }