Differential updates for components.

chrome/browser/component_updater/recovery_component_installer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/component_updater/recovery_component_installer.h"
 
 #include "base/base_paths.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 38 matching lines @@
   explicit RecoveryComponentInstaller(const Version& version,
                                       PrefService* prefs);
 
   virtual ~RecoveryComponentInstaller() {}
 
   virtual void OnUpdateError(int error) OVERRIDE;
 
   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;
+
  private:
   Version current_version_;
   PrefService* prefs_;
 };
 
 void RecoveryRegisterHelper(ComponentUpdateService* cus,
                             PrefService* prefs) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   Version version(prefs->GetString(prefs::kRecoveryComponentVersion));
   if (!version.IsValid()) {
@@ skipping 54 matching lines @@
       cmdline.AppendSwitchASCII("version", current_version_.GetString());
   }
   current_version_ = version;
   if (prefs_) {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
         base::Bind(&RecoveryUpdateVersionHelper, version, prefs_));
   }
   return base::LaunchProcess(cmdline, base::LaunchOptions(), NULL);
 }
 
+bool RecoveryComponentInstaller::GetInstalledFile(
+    const std::string& file, base::FilePath* installed_file) {
+  return false;
+}
+
 void RegisterRecoveryComponent(ComponentUpdateService* cus,
                                PrefService* prefs) {
 #if !defined(OS_CHROMEOS)
   // We delay execute the registration because we are not required in
   // the critical path during browser startup.
   BrowserThread::PostDelayedTask(
       BrowserThread::UI,
       FROM_HERE,
       base::Bind(&RecoveryRegisterHelper, cus, prefs),
       base::TimeDelta::FromSeconds(6));
 #endif
 }
 
 void RegisterPrefsForRecoveryComponent(PrefRegistrySimple* registry) {
   registry->RegisterStringPref(prefs::kRecoveryComponentVersion, "0.0.0.0");
 }