Fix subtle bug with the in-process utility thread usage in unit tests.

chrome/browser/extensions/sandboxed_unpacker_unittest.cc

 // Copyright (c) 2012 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/bind.h"
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/sandboxed_unpacker.h"
 #include "chrome/common/chrome_paths.h"
-#include "content/public/browser/render_process_host.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 namespace extensions {
 
 class MockSandboxedUnpackerClient : public SandboxedUnpackerClient {
@@ skipping 28 matching lines @@
   base::Closure quit_closure_;
   base::FilePath temp_dir_;
 };
 
 class SandboxedUnpackerTest : public testing::Test {
  public:
   virtual void SetUp() {
    ASSERT_TRUE(extensions_dir_.CreateUniqueTempDir());
     browser_threads_.reset(new content::TestBrowserThreadBundle(
         content::TestBrowserThreadBundle::IO_MAINLOOP));
+    in_process_utility_thread_helper_.reset(
+        new content::InProcessUtilityThreadHelper);
     // It will delete itself.
     client_ = new MockSandboxedUnpackerClient;
-    content::RenderProcessHost::SetRunRendererInProcess(true);
   }
 
   virtual void TearDown() {
     // Need to destruct SandboxedUnpacker before the message loop since
     // it posts a task to it.
     sandboxed_unpacker_ = NULL;
     base::RunLoop().RunUntilIdle();
-    content::RenderProcessHost::SetRunRendererInProcess(false);
   }
 
   void SetupUnpacker(const std::string& crx_name) {
     base::FilePath original_path;
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &original_path));
     original_path = original_path.AppendASCII("extensions")
         .AppendASCII("unpacker")
         .AppendASCII(crx_name);
     ASSERT_TRUE(base::PathExists(original_path)) << original_path.value();
 
@@ skipping 13 matching lines @@
 
   base::FilePath GetInstallPath() {
     return client_->temp_dir().AppendASCII(kTempExtensionName);
   }
 
  protected:
   base::ScopedTempDir extensions_dir_;
   MockSandboxedUnpackerClient* client_;
   scoped_refptr<SandboxedUnpacker> sandboxed_unpacker_;
   scoped_ptr<content::TestBrowserThreadBundle> browser_threads_;
+  scoped_ptr<content::InProcessUtilityThreadHelper>
+      in_process_utility_thread_helper_;
 };
 
 TEST_F(SandboxedUnpackerTest, NoCatalogsSuccess) {
   SetupUnpacker("no_l10n.crx");
   // Check that there is no _locales folder.
   base::FilePath install_path =
       GetInstallPath().Append(kLocaleFolder);
   EXPECT_FALSE(base::PathExists(install_path));
 }
 
 TEST_F(SandboxedUnpackerTest, WithCatalogsSuccess) {
   SetupUnpacker("good_l10n.crx");
   // Check that there is _locales folder.
   base::FilePath install_path =
       GetInstallPath().Append(kLocaleFolder);
   EXPECT_TRUE(base::PathExists(install_path));
 }
 
 }  // namespace extensions