extensions: Introduce ShowExtensionInstallDialog2 function.

This is to start cleanning up the ExtensionInstallUI class.

BUG=66730
TEST=None

[email protected]

Review URL: http://codereview.chromium.org/6680020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79060 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 7f43add..cd18f337 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -955,6 +955,7 @@
         'browser/extensions/extension_input_api.cc',
         'browser/extensions/extension_input_api.h',
         'browser/extensions/extension_install_dialog.h',
+        'browser/extensions/extension_install_dialog2.h',
         'browser/extensions/extension_install_ui.cc',
         'browser/extensions/extension_install_ui.h',
         'browser/extensions/extension_management_api.cc',