Implement script API:executeScript

chrome/common/extensions/api/extension_api.json

 [
   {
     "namespace": "extension",
     "types": [
       {
         "id": "Port",
         "type": "object",
         "description": "An object which allows two way communication with other pages.",
         "properties": {
           "name": {"type": "string"},
@@ skipping 560 matching lines @@
             "minimum": 0,
             "optional": true,
             "description": "The target window. Defaults to the <a href='windows.html#current-window'>current window</a>."
           },
           {
             "type": "function", "name": "callback", "parameters": [
               {"type": "string", "name": "dataUrl", "description": "A data URL of a JPEG encoding of the visible area of the captured tab. May be assigned to the 'src' property of an HTML Image element for display."}
             ]
           }
         ]
+      },
+      {
+        "name": "executeScript",
+        "type": "function",
+        "description": "",
+        "parameters": [
+          {"type": "integer", "name": "tabId", "optional": true, "description": "The id of tab which run the script, default to selected tab of current window."},
+          {
+            "type": "object",
+            "name": "scriptDef",
+            "description": "Note:scripts are injected in the following definition order.",
+            "properties": {
+              "code": {"type": "string", "optional": true, "description": "JavaScript code to execute."},
+              "file": {"type": "string", "optional": true, "description": "JavaScript file to execute."}
+            },
+            "optional": true
+          },
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "description": "When all scripts are executed, this callback is called.",
+            "parameters": []
+          }
+        ],
+        "returns": {
+          "type": "boolean",
+          "description": "Whether this call is successful"
+        }
+      },
+      {
+        "name": "insertCSS",
+        "type": "function",
+        "description": "",
+        "parameters": [
+          {"type": "integer", "name": "tabId", "optional": true, "description": "The id of tab which run the script, default to selected tab of current window."},
+          {
+            "type": "object",
+            "name": "scriptDef",
+            "description": "Note:css are injected in the following definition order.",
+            "properties": {
+              "code": {"type": "string", "optional": true, "description": "CSS code to be injected."},
+              "file": {"type": "string", "optional": true, "description": "CSS file to be injected."},
+            },
+            "optional": true
+          },
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "description": "When all css are inserted, this callback is called.",
+            "parameters": []
+          }
+        ],
+        "returns": {
+          "type": "boolean",
+          "description": "Whether this call is successful"
+        }
       }
     ],
     "events": [
       {
         "name": "onCreated",
         "type": "function",
         "description": "Fires when a tab is created.",
         "parameters": [
           {
             "$ref": "Tab",
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         "type": "function",
         "description": "Logs a message during internal unit testing.",
         "parameters": [
           {"type": "string", "name": "message"}
         ]
       }
     ],
     "events": []
   }
 ]