Fix integration tests in src/chrome and src/extensions so that we can turn on IO thread checks wi...

chrome/browser/importer/ie_importer_browsertest_win.cc

Index: chrome/browser/importer/ie_importer_browsertest_win.cc
diff --git a/chrome/browser/importer/ie_importer_browsertest_win.cc b/chrome/browser/importer/ie_importer_browsertest_win.cc
index e306a436d2619d49fce5e86b64ab87d52821d9e9..ed6974f7a8bbd1a10814ba526131a0ea5b7214c7 100644
--- a/chrome/browser/importer/ie_importer_browsertest_win.cc
+++ b/chrome/browser/importer/ie_importer_browsertest_win.cc
@@ -27,6 +27,7 @@
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_restrictions.h"
 #include "base/win/registry.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_propvariant.h"
@@ -435,6 +436,7 @@ class IEImporterBrowserTest : public InProcessBrowserTest {
 };
 
 IN_PROC_BROWSER_TEST_F(IEImporterBrowserTest, IEImporter) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   // Sets up a favorites folder.
   base::FilePath path = temp_dir_.GetPath().AppendASCII("Favorites");
   CreateDirectory(path.value().c_str(), NULL);