Revert change that disallowed content scripts access to file://

chrome/test/page_cycler/page_cycler_test.cc

Index: chrome/test/page_cycler/page_cycler_test.cc
diff --git a/chrome/test/page_cycler/page_cycler_test.cc b/chrome/test/page_cycler/page_cycler_test.cc
index 234b02171605d2288fb370a4f3190a86b3d9af5c..be801c6f1cb3aef1e18cb089d1a2d7f8c92c47f1 100644
--- a/chrome/test/page_cycler/page_cycler_test.cc
+++ b/chrome/test/page_cycler/page_cycler_test.cc
@@ -162,9 +162,6 @@ class PageCyclerTest : public UITest {
     // Expose garbage collection for the page cycler tests.
     launch_arguments_.AppendSwitchWithValue(switches::kJavaScriptFlags,
                                             L"--expose_gc");
-    // Page cycler tests need to run content scripts on file:// urls.
-    launch_arguments_.AppendSwitch(switches::kEnableJsOnFileUrls);
-
 #if defined(OS_MACOSX)
     static rlim_t initial_fd_limit = GetFileDescriptorLimit();
     fd_limit_ = initial_fd_limit;