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

chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc

Index: chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
diff --git a/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc b/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
index 199e51667de465154264dd73892bf71c2b067119..1153f7cc2e4e5457fc4474e117e33140c3b48286 100644
--- a/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
+++ b/chrome/browser/nacl_host/test/nacl_gdb_browsertest.cc
@@ -8,6 +8,7 @@
 #include "base/environment.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
+#include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/ppapi/ppapi_test.h"
@@ -56,6 +57,7 @@ class NaClGdbTest : public PPAPINaClNewlibTest {
         return;
     }
 #endif
+    base::ThreadRestrictions::ScopedAllowIO allow_io;
     EXPECT_TRUE(base::CreateTemporaryFile(&mock_nacl_gdb_file));
     env->SetVar("MOCK_NACL_GDB", mock_nacl_gdb_file.AsUTF8Unsafe());
     RunTestViaHTTP(test_name);