Allow ChromeOS file selection dialog to be shown from shell windows.

chrome/browser/extensions/extension_process_manager.cc

Index: chrome/browser/extensions/extension_process_manager.cc
diff --git a/chrome/browser/extensions/extension_process_manager.cc b/chrome/browser/extensions/extension_process_manager.cc
index d96c33aef9fb099e6578e513c02e1dc6b91258cf..0fed14f33cd9cfa19b9d7deaf30f498f283dc034 100644
--- a/chrome/browser/extensions/extension_process_manager.cc
+++ b/chrome/browser/extensions/extension_process_manager.cc
@@ -239,9 +239,8 @@ ExtensionHost* ExtensionProcessManager::CreatePopupHost(
   return CreateViewHost(url, browser, chrome::VIEW_TYPE_EXTENSION_POPUP);
 }
 
-ExtensionHost* ExtensionProcessManager::CreateDialogHost(
-    const GURL& url, Browser* browser) {
-  return CreateViewHost(url, browser, chrome::VIEW_TYPE_EXTENSION_DIALOG);
+ExtensionHost* ExtensionProcessManager::CreateDialogHost(const GURL& url) {
+  return CreateViewHost(url, NULL, chrome::VIEW_TYPE_EXTENSION_DIALOG);
 }
 
 ExtensionHost* ExtensionProcessManager::CreateInfobarHost(