Make the page action space show extensions with active content scripts or

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index 7799938e2986aa0280ca26cc980c4c51c315b528..cae1482d1313474d1f0e09523a962c0e6fcc4c10 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -3492,6 +3492,15 @@ bool Extension::ShouldDisplayInExtensionSettings() const {
   return true;
 }
 
+bool Extension::HasContentScriptAtURL(const GURL& url) const {
+  for (UserScriptList::const_iterator it = content_scripts_.begin();
+      it != content_scripts_.end(); ++it) {
+    if (it->MatchesURL(url))
+      return true;
+  }
+  return false;
+}
+
 bool Extension::CheckPlatformAppFeatures(std::string* utf8_error) {
   if (!is_platform_app())
     return true;