Revert 63600 - Thread IO safety: annotate file_util, and block IO thread from...

chrome/browser/extensions/autoupdate_interceptor.cc

Index: chrome/browser/extensions/autoupdate_interceptor.cc
===================================================================
--- chrome/browser/extensions/autoupdate_interceptor.cc	(revision 63629)
+++ chrome/browser/extensions/autoupdate_interceptor.cc	(working copy)
@@ -5,7 +5,6 @@
 #include "chrome/browser/extensions/autoupdate_interceptor.h"
 
 #include "base/file_util.h"
-#include "base/thread_restrictions.h"
 #include "chrome/browser/browser_thread.h"
 #include "net/url_request/url_request_test_job.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -41,10 +40,6 @@
       return NULL;
   }
 
-  // It's ok to do a blocking disk access on this thread; this class
-  // is just used for tests.
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
-
   // Search for this request's url, ignoring any query parameters.
   GURL url = request->url();
   if (url.has_query()) {
@@ -66,9 +61,6 @@
 void AutoUpdateInterceptor::SetResponse(const std::string url,
                                         const FilePath& path) {
   EXPECT_TRUE(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  // It's ok to do a blocking disk access on this thread; this class
-  // is just used for tests.
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
   GURL gurl(url);
   EXPECT_EQ("http", gurl.scheme());
   EXPECT_EQ("localhost", gurl.host());