More aggressive IO asserts in content_browsertests.

content/test/ppapi/ppapi_test.cc

 // Copyright 2014 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 "content/test/ppapi/ppapi_test.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/ppapi_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "net/base/filename_util.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/audio/cras_audio_handler.h"
@@ skipping 30 matching lines @@
   command_line->AppendSwitch(switches::kDisableSmoothScrolling);
 
   // Allow manual garbage collection.
   command_line->AppendSwitchASCII(switches::kJavaScriptFlags, "--expose_gc");
 
   command_line->AppendSwitch(switches::kUseFakeUIForMediaStream);
 }
 
 GURL PPAPITestBase::GetTestFileUrl(const std::string& test_case) {
   base::FilePath test_path;
-  EXPECT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &test_path));
-  test_path = test_path.Append(FILE_PATH_LITERAL("ppapi"));
-  test_path = test_path.Append(FILE_PATH_LITERAL("tests"));
-  test_path = test_path.Append(FILE_PATH_LITERAL("test_case.html"));
+  {
+    base::ThreadRestrictions::ScopedAllowIO allow_io_for_test_setup;
 
-  // Sanity check the file name.
-  EXPECT_TRUE(base::PathExists(test_path));
+    EXPECT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &test_path));
+    test_path = test_path.Append(FILE_PATH_LITERAL("ppapi"));
+    test_path = test_path.Append(FILE_PATH_LITERAL("tests"));
+    test_path = test_path.Append(FILE_PATH_LITERAL("test_case.html"));
+
+    // Sanity check the file name.
+    EXPECT_TRUE(base::PathExists(test_path));
+  }
+
   GURL test_url = net::FilePathToFileURL(test_path);
 
   GURL::Replacements replacements;
   std::string query = BuildQuery(std::string(), test_case);
   replacements.SetQuery(query.c_str(), url::Component(0, query.size()));
   return test_url.ReplaceComponents(replacements);
 }
 
 void PPAPITestBase::RunTest(const std::string& test_case) {
   GURL url = GetTestFileUrl(test_case);
@@ skipping 49 matching lines @@
 }
 
 void OutOfProcessPPAPITest::TearDown() {
   ContentBrowserTest::TearDown();
 #if defined(OS_CHROMEOS)
     chromeos::CrasAudioHandler::Shutdown();
 #endif
 }
 
 }  // namespace content