Get content_browsertest working. I've added a simple test for now, and will convert the tests in sr…

content/public/test/test_launcher.h

Index: content/public/test/test_launcher.h
===================================================================
--- content/public/test/test_launcher.h	(revision 147044)
+++ content/public/test/test_launcher.h	(working copy)
@@ -10,6 +10,10 @@
 
 class CommandLine;
 
+namespace base {
+class RunLoop;
+}
+
 namespace test_launcher {
 
 extern const char kEmptyTestName[];
@@ -30,6 +34,8 @@
   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 void PreRunMessageLoop(base::RunLoop* run_loop) {}
+  virtual void PostRunMessageLoop() {}
 
  protected:
   virtual ~TestLauncherDelegate();
@@ -39,6 +45,8 @@
                 int argc,
                 char** argv) WARN_UNUSED_RESULT;
 
+TestLauncherDelegate* GetCurrentTestLauncherDelegate();
+
 }  // namespace test_launcher
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_LAUNCHER_H_