Make content_browsertests support restarts across a test.

content/public/test/test_launcher.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_PUBLIC_TEST_TEST_LAUNCHER_H_
 #define CONTENT_PUBLIC_TEST_TEST_LAUNCHER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 class CommandLine;
+class FilePath;
 
 namespace base {
 class RunLoop;
 }
 
 namespace test_launcher {
 
 extern const char kEmptyTestName[];
 extern const char kGTestFilterFlag[];
 extern const char kGTestHelpFlag[];
 extern const char kGTestListTestsFlag[];
 extern const char kGTestRepeatFlag[];
 extern const char kGTestRunDisabledTestsFlag[];
 extern const char kGTestOutputFlag[];
 extern const char kSingleProcessTestsFlag[];
 extern const char kSingleProcessTestsAndChromeFlag[];
 extern const char kRunManualTestsFlag[];
 extern const char kHelpFlag[];
 
 // Flag that causes only the kEmptyTestName test to be run.
 extern const char kWarmupFlag[];
 
 class TestLauncherDelegate {
  public:
   virtual std::string GetEmptyTestName() = 0;
   virtual bool Run(int argc, char** argv, int* return_code) = 0;
   virtual int RunTestSuite(int argc, char** argv) = 0;
-  virtual bool AdjustChildProcessCommandLine(CommandLine* command_line) = 0;
+  virtual bool AdjustChildProcessCommandLine(CommandLine* command_line,
+                                             const FilePath& temp_data_dir) = 0;
   virtual void PreRunMessageLoop(base::RunLoop* run_loop) {}
   virtual void PostRunMessageLoop() {}
 
  protected:
   virtual ~TestLauncherDelegate();
 };
 
 int LaunchTests(TestLauncherDelegate* launcher_delegate,
                 int argc,
                 char** argv) WARN_UNUSED_RESULT;
 
 TestLauncherDelegate* GetCurrentTestLauncherDelegate();
 
 }  // namespace test_launcher
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_LAUNCHER_H_