Remove ability for users to launch ephemeral apps.

chrome/browser/extensions/webstore_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/webstore_installer.h"
 
 #include <set>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 223 matching lines @@
     const std::string& id,
     content::DownloadItem* item) {
 }
 
 WebstoreInstaller::Approval::Approval()
     : profile(NULL),
       use_app_installed_bubble(false),
       skip_post_install_ui(false),
       skip_install_dialog(false),
       enable_launcher(false),
-      manifest_check_level(MANIFEST_CHECK_LEVEL_STRICT),
-      is_ephemeral(false) {
+      manifest_check_level(MANIFEST_CHECK_LEVEL_STRICT) {
 }
 
 scoped_ptr<WebstoreInstaller::Approval>
 WebstoreInstaller::Approval::CreateWithInstallPrompt(Profile* profile) {
   scoped_ptr<Approval> result(new Approval());
   result->profile = profile;
   return result.Pass();
 }
 
 scoped_ptr<WebstoreInstaller::Approval>
@@ skipping 95 matching lines @@
     NOTREACHED();
   }
   extensions::InstallTracker* tracker =
       extensions::InstallTrackerFactory::GetForBrowserContext(profile_);
   extensions::InstallObserver::ExtensionInstallParams params(
       id_,
       name,
       approval_->installing_icon,
       approval_->manifest->is_app(),
       approval_->manifest->is_platform_app());
-  params.is_ephemeral = approval_->is_ephemeral;
   tracker->OnBeginExtensionInstall(params);
 
   tracker->OnBeginExtensionDownload(id_);
 
   // TODO(crbug.com/305343): Query manifest of dependencies before
   // downloading & installing those dependencies.
   DownloadNextPendingModule();
 }
 
 void WebstoreInstaller::Observe(int type,
@@ skipping 413 matching lines @@
         1,
         kMaxSizeKb,
         kNumBuckets);
   }
   UMA_HISTOGRAM_BOOLEAN(
       "Extensions.WebstoreDownload.InterruptTotalSizeUnknown",
       total_bytes <= 0);
 }
 
 }  // namespace extensions