STH Set: Delay loading until after start-up.

chrome/browser/component_updater/sth_set_component_installer.h

Index: chrome/browser/component_updater/sth_set_component_installer.h
diff --git a/chrome/browser/component_updater/sth_set_component_installer.h b/chrome/browser/component_updater/sth_set_component_installer.h
index 90aec8ae778a182a171bf10bb140fb8d9e6f528f..4ff63e2c750c8e98c6056d2a79376e6a60c0361a 100644
--- a/chrome/browser/component_updater/sth_set_component_installer.h
+++ b/chrome/browser/component_updater/sth_set_component_installer.h
@@ -61,6 +61,10 @@ class STHSetComponentInstallerTraits : public ComponentInstallerTraits {
   std::string GetName() const override;
   update_client::InstallerAttributes GetInstallerAttributes() const override;
 
+  // Posts a task to the blocking pool for reading the STHs from disk.
+  void PostStartupLoadSTHsFromDisk(const base::FilePath& install_dir,
+                                   const base::Version& version);
+
   // Reads and parses the on-disk json.
   void LoadSTHsFromDisk(const base::FilePath& sths_file_path,
                         const base::Version& version);