Eliminate all UI thread decoding of extension images....

chrome/browser/extensions/crx_installer.cc

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/file_util.h"
 #include "base/scoped_temp_dir.h"
 #include "base/task.h"
@@ skipping 147 matching lines @@
       << " is blacklisted. Install failed.";
     ReportFailureFromUIThread("This extension is blacklisted.");
     return;
   }
 
   current_version_ =
       frontend_->extension_prefs()->GetVersionString(extension_->id());
 
   if (client_.get()) {
     AddRef();  // Balanced in Proceed() and Abort().
-    client_->ConfirmInstall(this, extension_.get(), install_icon_.get());
+    client_->ConfirmInstall(this, extension_.get());
   } else {
     ChromeThread::PostTask(
         ChromeThread::FILE, FROM_HERE,
         NewRunnableMethod(this, &CrxInstaller::CompleteInstall));
   }
   return;
 }
 
 void CrxInstaller::InstallUIProceed(bool create_app_shortcut) {
   if (create_app_shortcut) {
@@ skipping 142 matching lines @@
     client_->OnInstallSuccess(extension_.get());
 
   // Tell the frontend about the installation and hand off ownership of
   // extension_ to it.
   frontend_->OnExtensionInstalled(extension_.release(),
                                   allow_privilege_increase_);
 
   // We're done. We don't post any more tasks to ourselves so we are deleted
   // soon.
 }