Make content_browsertests support restarts across a test.

content/test/content_test_launcher.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 "content/public/test/test_launcher.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/path_service.h"
-#include "base/scoped_temp_dir.h"
 #include "base/test/test_suite.h"
 #include "content/public/app/content_main.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/content_test_suite_base.h"
 #include "content/shell/shell_content_browser_client.h"
 #include "content/shell/shell_content_client.h"
 #include "content/shell/shell_main_delegate.h"
+#include "content/shell/shell_switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_WIN)
 #include "content/public/app/startup_helper_win.h"
 #include "sandbox/win/src/sandbox_types.h"
 #include "ui/base/win/scoped_ole_initializer.h"
 #endif  // defined(OS_WIN)
 
 namespace content {
 
@@ skipping 85 matching lines @@
 #endif  // defined(OS_WIN) || defined(OS_LINUX)
 
     return false;
   }
 
   virtual int RunTestSuite(int argc, char** argv) OVERRIDE {
     return ContentBrowserTestSuite(argc, argv).Run();
   }
 
   virtual bool AdjustChildProcessCommandLine(
-      CommandLine* command_line) OVERRIDE {
+      CommandLine* command_line, const FilePath& temp_data_dir) OVERRIDE {
+    command_line->AppendSwitchPath(switches::kContentShellDataPath,
+                                   temp_data_dir);
     return true;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ContentTestLauncherDelegate);
 };
 
 }  // namespace content
 
 int main(int argc, char** argv) {
   content::ContentTestLauncherDelegate launcher_delegate;
   return test_launcher::LaunchTests(&launcher_delegate, argc, argv);
 }