Allow content script insertion on about:-URLs.

extensions/common/user_script.h

Index: extensions/common/user_script.h
diff --git a/extensions/common/user_script.h b/extensions/common/user_script.h
index 76b64d459a7ad42e0c49b0681012ce70bdf9381b..05974c7fa4db6359e50c30a4e67339da9cc644c9 100644
--- a/extensions/common/user_script.h
+++ b/extensions/common/user_script.h
@@ -137,6 +137,10 @@ class UserScript {
   bool match_all_frames() const { return match_all_frames_; }
   void set_match_all_frames(bool val) { match_all_frames_ = val; }
 
+  // Whether to match about:blank and about:srcdoc.
+  bool match_about_blank() const { return match_about_blank_; }
+  void set_match_about_blank(bool val) { match_about_blank_ = val; }
+
   // The globs, if any, that determine which pages this script runs against.
   // These are only used with "standalone" Greasemonkey-like user scripts.
   const std::vector<std::string>& globs() const { return globs_; }
@@ -249,6 +253,10 @@ class UserScript {
   // Defaults to false.
   bool match_all_frames_;
 
+  // Whether the user script should run in about:blank and about:srcdoc as well.
+  // Defaults to false.
+  bool match_about_blank_;
+
   // True if the script should be injected into an incognito tab.
   bool incognito_enabled_;
 };