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 9576440f0db76400c0276ccf4f6b5f07276c1d84..0bc296c60321641c2c2565f12b4a78380558656b 100644
--- a/chrome/browser/extensions/extension_process_manager.cc
+++ b/chrome/browser/extensions/extension_process_manager.cc
@@ -243,9 +243,8 @@ 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(