Add a default icon for theme install infobar....

chrome/browser/extensions/theme_preview_infobar_delegate.cc

 // Copyright (c) 2009 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/theme_preview_infobar_delegate.h"
 
 #include "app/l10n_util.h"
+#include "app/resource_bundle.h"
 #include "base/string_util.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
 
 ThemePreviewInfobarDelegate::ThemePreviewInfobarDelegate(
     TabContents* tab_contents, const std::string& name)
          : ConfirmInfoBarDelegate(tab_contents),
            profile_(tab_contents->profile()), name_(name) {
 }
 
 void ThemePreviewInfobarDelegate::InfoBarClosed() {
   delete this;
 }
 
 std::wstring ThemePreviewInfobarDelegate::GetMessageText() const {
   return l10n_util::GetStringF(IDS_THEME_INSTALL_INFOBAR_LABEL,
                                UTF8ToWide(name_));
 }
 
 SkBitmap* ThemePreviewInfobarDelegate::GetIcon() const {
   // TODO(aa): Reply with the theme's icon, but this requires reading it
   // asynchronously from disk.
-  return NULL;
+  return ResourceBundle::GetSharedInstance().GetBitmapNamed(
+      IDR_INFOBAR_THEME);
 }
 
 ThemePreviewInfobarDelegate*
     ThemePreviewInfobarDelegate::AsThemePreviewInfobarDelegate() {
   return this;
 }
 
 int ThemePreviewInfobarDelegate::GetButtons() const {
   return BUTTON_CANCEL;
 }
@@ skipping 12 matching lines @@
   // Blech, this is a total hack.
   //
   // a) We should be uninstalling via ExtensionsService, not
   //    Profile::ClearTheme().
   // b) We should be able to view the theme without installing it. This would
   //    help in edge cases like the user closing the window or tab before making
   //    a decision.
   profile_->ClearTheme();
   return true;
 }