Enable <webview>.executeScript outside of Apps and Extensions [2]

extensions/browser/api/execute_code_function.h

Index: extensions/browser/api/execute_code_function.h
diff --git a/extensions/browser/api/execute_code_function.h b/extensions/browser/api/execute_code_function.h
index db0f441c8149baa5391e216057478f1b77181a7b..118ec38c1dc6a0cef4e2bf18156a4290641f5e8d 100644
--- a/extensions/browser/api/execute_code_function.h
+++ b/extensions/browser/api/execute_code_function.h
@@ -17,6 +17,11 @@ namespace extensions {
 // chrome.tabs.executeScript.
 class ExecuteCodeFunction : public AsyncExtensionFunction {
  public:
+  // Called when a file URL request is complete.
+  // Parameters:
+  // - whether the request is success.
+  // - If yes, the content of the file.
+  using WebUILoadFileCallback = base::Callback<void(bool, const std::string&)>;
   ExecuteCodeFunction();
 
  protected:
@@ -33,6 +38,8 @@ class ExecuteCodeFunction : public AsyncExtensionFunction {
   virtual ScriptExecutor* GetScriptExecutor() = 0;
   virtual bool IsWebView() const = 0;
   virtual const GURL& GetWebViewSrc() const = 0;
+  virtual bool LoadFileForWebUI(const std::string& file_src,
+                                const WebUILoadFileCallback& callback) = 0;
   virtual void OnExecuteCodeFinished(const std::string& error,
                                      const GURL& on_url,
                                      const base::ListValue& result);
@@ -50,6 +57,9 @@ class ExecuteCodeFunction : public AsyncExtensionFunction {
   // arguments has been loaded.
   void DidLoadFile(bool success, const std::string& data);
 
+  // Called when the file is loaded for WebUI.
+  void DidLoadFileForWebUI(bool success, const std::string& data);
+
   // Runs on FILE thread. Loads message bundles for the extension and
   // localizes the CSS data. Calls back DidLoadAndLocalizeFile on the UI thread.
   void GetFileURLAndLocalizeCSS(ScriptExecutor::ScriptType script_type,