Cleaning up capture_web_contents_function.

chrome/browser/extensions/chrome_extension_function_details.h

Index: chrome/browser/extensions/chrome_extension_function_details.h
diff --git a/chrome/browser/extensions/chrome_extension_function_details.h b/chrome/browser/extensions/chrome_extension_function_details.h
index 6e1bf92cc27364e4935eb7935b55db1edbf7aacb..79c5c09e16ea967ca80d5ccdedc62f522e28bcae 100644
--- a/chrome/browser/extensions/chrome_extension_function_details.h
+++ b/chrome/browser/extensions/chrome_extension_function_details.h
@@ -62,6 +62,10 @@ class ChromeExtensionFunctionDetails {
   // contents then defaults to the foremost one.
   content::WebContents* GetAssociatedWebContents();
 
+  // Returns a pointer to the associated UIThreadExtensionFunction
+  UIThreadExtensionFunction* function() { return function_; }
+  const UIThreadExtensionFunction* function() const { return function_; }
+
  private:
   // The function for which these details have been created. Must outlive the
   // ChromeExtensionFunctionDetails instance.