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

chrome/browser/ui/search/local_ntp_browsertest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_restrictions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/search/instant_test_utils.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ skipping 16 matching lines @@
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/vector2d.h"
 
 namespace {
 
 // Switches the browser language to French, and returns true iff successful.
 bool SwitchToFrench() {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   // Make sure the default language is not French.
   std::string default_locale = g_browser_process->GetApplicationLocale();
   EXPECT_NE("fr", default_locale);
 
   // Switch browser language to French.
   std::string loaded_locale =
       ui::ResourceBundle::GetSharedInstance().ReloadLocaleResources("fr");
 
   return loaded_locale == "fr";
 }
@@ skipping 245 matching lines @@
   EXPECT_EQ(0, failed_imgs);
 }
 
 IN_PROC_BROWSER_TEST_F(LocalNTPTest,
                        NTPRespectsBrowserLanguageSetting) {
   // Make sure the default language is not French.
   std::string default_locale = g_browser_process->GetApplicationLocale();
   EXPECT_NE("fr", default_locale);
 
   // Switch browser language to French.
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   std::string loaded_locale =
       ui::ResourceBundle::GetSharedInstance().ReloadLocaleResources("fr");
 
   // If the platform cannot load the French locale (GetApplicationLocale() is
   // platform specific, and has been observed to fail on a small number of
   // platforms), abort the test.
   if (!SwitchToFrench()) {
     LOG(ERROR) << "Failed switching to French language, aborting test.";
     return;
   }
@@ skipping 24 matching lines @@
 class LocalNTPSmokeTest : public InProcessBrowserTest {
  public:
   LocalNTPSmokeTest() {}
 
  protected:
   void SetUpCommandLine(base::CommandLine* cmdline) override {
     cmdline->AppendSwitchASCII(switches::kEnableFeatures, "UseGoogleLocalNtp");
   }
 
   void SetUserSelectedDefaultSearchProvider(const std::string& base_url) {
+    base::ThreadRestrictions::ScopedAllowIO allow_io;
     TemplateURLData data;
     data.SetShortName(base::UTF8ToUTF16(base_url));
     data.SetKeyword(base::UTF8ToUTF16(base_url));
     data.SetURL(base_url + "url?bar={searchTerms}");
 
     TemplateURLService* template_url_service =
         TemplateURLServiceFactory::GetForProfile(browser()->profile());
     TemplateURL* template_url =
         template_url_service->Add(base::MakeUnique<TemplateURL>(data));
     template_url_service->SetUserSelectedDefaultSearchProvider(template_url);
@@ skipping 73 matching lines @@
   ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
   ASSERT_TRUE(search::IsInstantNTP(active_tab));
   ASSERT_EQ(GURL(chrome::kChromeSearchLocalNtpUrl),
             active_tab->GetController().GetVisibleEntry()->GetURL());
   // Make sure it's actually in French.
   ASSERT_EQ(base::ASCIIToUTF16("Nouvel onglet"), active_tab->GetTitle());
 
   // We shouldn't have gotten any console error messages.
   EXPECT_TRUE(console_observer.message().empty()) << console_observer.message();
 }