Differential updates for components.

chrome/browser/component_updater/pnacl/pnacl_component_installer.h

Index: chrome/browser/component_updater/pnacl/pnacl_component_installer.h
===================================================================
--- chrome/browser/component_updater/pnacl/pnacl_component_installer.h	(revision 201835)
+++ chrome/browser/component_updater/pnacl/pnacl_component_installer.h	(working copy)
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
 
+#include <string>
+
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/version.h"
@@ -31,6 +33,9 @@
   virtual bool Install(const base::DictionaryValue& manifest,
                        const base::FilePath& unpack_path) OVERRIDE;
 
+  virtual bool GetInstalledFile(const std::string& file,
+                                base::FilePath* installed_file) OVERRIDE;
+
   // Register a PNaCl component for the first time.
   void RegisterPnaclComponent(ComponentUpdateService* cus,
                               const CommandLine& command_line);