Perform install tasks for newly installed or upgraded component apps/extensions.

chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc

Index: chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc
diff --git a/chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc b/chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc
index dc1c311308b469061f8be9a2a43a9716c10bb10a..243f638d70edf15b53bc8b0a2ee4436c2bd6a833 100644
--- a/chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc
+++ b/chrome/browser/ui/views/select_file_dialog_extension_browsertest.cc
@@ -12,6 +12,7 @@
 #include "base/threading/platform_thread.h"
 #include "base/utf_string_conversions.h"  // ASCIIToUTF16
 #include "build/build_config.h"
+#include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/profiles/profile.h"
@@ -84,6 +85,8 @@ class SelectFileDialogExtensionBrowserTest : public ExtensionBrowserTest {
   };
 
   virtual void SetUp() OVERRIDE {
+    extensions::ComponentLoader::EnableBackgroundExtensionsForTesting();
+
     // Create the dialog wrapper object, but don't show it yet.
     listener_.reset(new MockSelectFileDialogListener());
     dialog_ = new SelectFileDialogExtension(listener_.get(), NULL);