Add first-class support for user scripts

chrome/common/extensions/extension_constants.h

Index: chrome/common/extensions/extension_constants.h
diff --git a/chrome/common/extensions/extension_constants.h b/chrome/common/extensions/extension_constants.h
index 7f44bf6661a5588e4d16bcaf32a61fc4abab011a..c18ea557c726a2e23eaaed3ce5b0d998d812a604 100644
--- a/chrome/common/extensions/extension_constants.h
+++ b/chrome/common/extensions/extension_constants.h
@@ -11,10 +11,13 @@ namespace extension_manifest_keys {
   extern const wchar_t* kBrowserAction;
   extern const wchar_t* kChromeURLOverrides;
   extern const wchar_t* kContentScripts;
+  extern const wchar_t* kConvertedFromUserScript;
   extern const wchar_t* kCss;
   extern const wchar_t* kDefaultLocale;
   extern const wchar_t* kDescription;
+  extern const wchar_t* kExcludeGlobs;
   extern const wchar_t* kIcons;
+  extern const wchar_t* kIncludeGlobs;
   extern const wchar_t* kJs;
   extern const wchar_t* kMatches;
   extern const wchar_t* kName;
@@ -69,6 +72,8 @@ namespace extension_manifest_errors {
   extern const char* kInvalidDescription;
   extern const char* kInvalidIcons;
   extern const char* kInvalidIconPath;
+  extern const char* kInvalidGlobList;
+  extern const char* kInvalidGlob;
   extern const char* kInvalidJs;
   extern const char* kInvalidJsList;
   extern const char* kInvalidKey;