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

chrome/browser/extensions/crx_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/extensions/crx_installer.h"
 
 #include <map>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 10 matching lines @@
 #include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
 #include "base/version.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/convert_user_script.h"
 #include "chrome/browser/extensions/convert_web_app.h"
 #include "chrome/browser/extensions/crx_installer_error.h"
 #include "chrome/browser/extensions/extension_error_reporter.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/install_tracker.h"
+#include "chrome/browser/extensions/install_tracker_factory.h"
 #include "chrome/browser/extensions/permissions_updater.h"
 #include "chrome/browser/extensions/webstore_installer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/web_applications/web_app.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_file_util.h"
 #include "chrome/common/extensions/extension_icon_set.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 128 matching lines @@
     BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, client_);
     client_ = NULL;
   }
 }
 
 void CrxInstaller::InstallCrx(const base::FilePath& source_file) {
   ExtensionService* service = service_weak_.get();
   if (!service || service->browser_terminating())
     return;
 
+  InstallTrackerFactory::GetForProfile(profile())
+      ->OnBeginCrxInstall(expected_id_);
+
   source_file_ = source_file;
 
   scoped_refptr<SandboxedUnpacker> unpacker(
       new SandboxedUnpacker(source_file,
                             install_source_,
                             creation_flags_,
                             install_directory_,
                             installer_task_runner_.get(),
                             this));
 
@@ skipping 680 matching lines @@
   if (!prefs->DidExtensionEscalatePermissions(extension()->id()))
     return;
 
   if (client_) {
     AddRef();  // Balanced in InstallUIProceed() and InstallUIAbort().
     client_->ConfirmReEnable(this, extension());
   }
 }
 
 }  // namespace extensions