Unify the version string to be displayed on "About Chromium" dialog.

chrome/common/chrome_version_info.h

Index: chrome/common/chrome_version_info.h
diff --git a/chrome/common/chrome_version_info.h b/chrome/common/chrome_version_info.h
index 6d509ca63e478f473bbc83d5d39502a710ad8052..330ddecc22628262a9dde7b881f29f3e534fe9e7 100644
--- a/chrome/common/chrome_version_info.h
+++ b/chrome/common/chrome_version_info.h
@@ -45,6 +45,9 @@ class VersionInfo {
   // LastChange() is.
   bool IsOfficialBuild() const;
 
+  // Returns a version string to be displayed in "About Chromium" dialog.
+  std::string CreateVersionString() const;
+
  private:
 #if defined(OS_WIN) || defined(OS_MACOSX)
   scoped_ptr<FileVersionInfo> version_info_;