Add the first app_shell_browsertest test.

apps/shell/test/app_shell_tests_main.cc

Index: apps/shell/test/app_shell_tests_main.cc
diff --git a/apps/test/apps_tests_main.cc b/apps/shell/test/app_shell_tests_main.cc
similarity index 79%
rename from apps/test/apps_tests_main.cc
rename to apps/shell/test/app_shell_tests_main.cc
index 080841e7aac5d31e1d114909d989640a185231ef..e62b69a1d2f570034c42768b6324e71510a673f6 100644
--- a/apps/test/apps_tests_main.cc
+++ b/apps/shell/test/app_shell_tests_main.cc
@@ -4,12 +4,12 @@
 
 #include <algorithm>
 
-#include "apps/test/apps_test_launcher_delegate.h"
+#include "apps/shell/test/app_shell_test_launcher_delegate.h"
 #include "base/sys_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 int main(int argc, char** argv) {
   int default_jobs = std::max(1, base::SysInfo::NumberOfProcessors() / 2);
-  apps::AppsTestLauncherDelegate launcher_delegate;
+  apps::AppShellTestLauncherDelegate launcher_delegate;
   return content::LaunchTests(&launcher_delegate, default_jobs, argc, argv);
 }