Add chrome.webstore API methods to allow sites to see progress of installation

chrome/browser/extensions/install_tracker.cc

 // Copyright 2013 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/extensions/install_tracker.h"
 
 #include "base/bind.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 35 matching lines @@
 void InstallTracker::RemoveObserver(InstallObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void InstallTracker::OnBeginExtensionInstall(
     const InstallObserver::ExtensionInstallParams& params) {
   FOR_EACH_OBSERVER(InstallObserver, observers_,
                     OnBeginExtensionInstall(params));
 }
 
+void InstallTracker::OnBeginExtensionDownload(const std::string& extension_id) {
+  FOR_EACH_OBSERVER(
+      InstallObserver, observers_, OnBeginExtensionDownload(extension_id));
+}
+
 void InstallTracker::OnDownloadProgress(const std::string& extension_id,
                                         int percent_downloaded) {
   FOR_EACH_OBSERVER(InstallObserver, observers_,
                     OnDownloadProgress(extension_id, percent_downloaded));
 }
 
+void InstallTracker::OnBeginCrxInstall(const std::string& extension_id) {
+  FOR_EACH_OBSERVER(
+      InstallObserver, observers_, OnBeginCrxInstall(extension_id));
+}
+
 void InstallTracker::OnInstallFailure(
     const std::string& extension_id) {
   FOR_EACH_OBSERVER(InstallObserver, observers_,
                     OnInstallFailure(extension_id));
 }
 
 void InstallTracker::Shutdown() {
   FOR_EACH_OBSERVER(InstallObserver, observers_, OnShutdown());
 }
 
@@ skipping 46 matching lines @@
     default:
       NOTREACHED();
   }
 }
 
 void InstallTracker::OnAppsReordered() {
   FOR_EACH_OBSERVER(InstallObserver, observers_, OnAppsReordered());
 }
 
 }  // namespace extensions