Import chrome idl into third_party

third_party/chrome/tools/test/crossref.json

Index: third_party/chrome/tools/test/crossref.json
diff --git a/third_party/chrome/tools/test/crossref.json b/third_party/chrome/tools/test/crossref.json
new file mode 100644
index 0000000000000000000000000000000000000000..9d3f90578447dc56612784074af937a4b17aa879
--- /dev/null
+++ b/third_party/chrome/tools/test/crossref.json
@@ -0,0 +1,75 @@
+[
+  {
+    "namespace": "crossref",
+    "dependencies": ["simple_api"],
+    "types": [
+      {
+        "id": "CrossrefType",
+        "type": "object",
+        "properties": {
+          "testType": {
+            "$ref": "simple_api.TestType",
+            "optional": true
+          }
+        }
+      }
+    ],
+    "functions": [
+      {
+        "name": "testTypeOptionalParam",
+        "type": "function",
+        "description": "Takes TestType as a param.",
+        "parameters": [
+          {
+            "name": "testType",
+            "$ref": "simple_api.TestType",
+            "optional": true
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "parameters": []
+          }
+        ]
+      },
+      {
+        "name": "getTestType",
+        "type": "function",
+        "description": "Return a TestType.",
+        "parameters": [
+          {
+            "name": "callback",
+            "type": "function",
+            "parameters": [
+              {
+                "name": "result",
+                "$ref": "simple_api.TestType",
+                "description": "A TestType."
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name": "testTypeInObject",
+        "type": "function",
+        "description": "Takes an optional object with a TestType and a bool.",
+        "parameters": [
+          {
+            "name": "paramObject",
+            "type": "object",
+            "properties": {
+              "testType": {"$ref": "simple_api.TestType", "optional": true},
+              "boolean": {"type": "boolean"}
+            }
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "parameters": []
+          }
+        ]
+      }
+    ]
+  }
+]