Android: Refactor native test setup in a util class.

content/shell/android/browsertests_apk/content_browser_tests_android.cc

Index: content/shell/android/browsertests_apk/content_browser_tests_android.cc
diff --git a/content/shell/android/browsertests_apk/content_browser_tests_android.cc b/content/shell/android/browsertests_apk/content_browser_tests_android.cc
index 83f24f6d5f483032950229329d4832ebd3525d9d..fd8563f06669ea908558e4397116a17fc12045bb 100644
--- a/content/shell/android/browsertests_apk/content_browser_tests_android.cc
+++ b/content/shell/android/browsertests_apk/content_browser_tests_android.cc
@@ -22,60 +22,19 @@
 #include "content/public/app/android_library_loader_hooks.h"
 #include "content/shell/android/shell_jni_registrar.h"
 #include "jni/ContentBrowserTestsActivity_jni.h"
+#include "testing/android/native_test_util.h"
+
+using testing::NativeTestUtil;
 
 // The main function of the program to be wrapped as an apk.
 extern int main(int argc, char** argv);
 
 namespace {
 
-void ParseArgsFromString(const std::string& command_line,
-                         std::vector<std::string>* args) {
-  base::StringTokenizer tokenizer(command_line, kWhitespaceASCII);
-  tokenizer.set_quote_chars("\"");
-  while (tokenizer.GetNext()) {
-    std::string token;
-    RemoveChars(tokenizer.token(), "\"", &token);
-    args->push_back(token);
-  }
-}
-
-void ParseArgsFromCommandLineFile(std::vector<std::string>* args) {
-  // The test runner script writes the command line file in
-  // "/data/local/tmp".
-  static const char kCommandLineFilePath[] =
-      "/data/local/tmp/content-browser-tests-command-line";
-  FilePath command_line(kCommandLineFilePath);
-  std::string command_line_string;
-  if (file_util::ReadFileToString(command_line, &command_line_string)) {
-    ParseArgsFromString(command_line_string, args);
-  }
-}
-
-int ArgsToArgv(const std::vector<std::string>& args,
-                std::vector<char*>* argv) {
-  // We need to pass in a non-const char**.
-  int argc = args.size();
-
-  argv->resize(argc + 1);
-  for (int i = 0; i < argc; ++i)
-    (*argv)[i] = const_cast<char*>(args[i].c_str());
-  (*argv)[argc] = NULL;  // argv must be NULL terminated.
-
-  return argc;
-}
-
-class ScopedMainEntryLogger {
- public:
-  ScopedMainEntryLogger() {
-    printf(">>ScopedMainEntryLogger\n");
-  }
-
-  ~ScopedMainEntryLogger() {
-    printf("<<ScopedMainEntryLogger\n");
-    fflush(stdout);
-    fflush(stderr);
-  }
-};
+// The test runner script writes the command line file in
+// "/data/local/tmp".
+static const char kCommandLineFilePath[] =
+    "/data/local/tmp/content-browser-tests-command-line";
 
 }  // namespace
 
@@ -95,17 +54,16 @@ static void RunTests(JNIEnv* env,
   base::android::RegisterJni(env);
 
   std::vector<std::string> args;
-  ParseArgsFromCommandLineFile(&args);
+  NativeTestUtil::ParseArgsFromCommandLineFile(kCommandLineFilePath, &args);
 
-  // We need to pass in a non-const char**.
   std::vector<char*> argv;
-  int argc = ArgsToArgv(args, &argv);
+  int argc = NativeTestUtil::ArgsToArgv(args, &argv);
 
   // Fully initialize command line with arguments.
   CommandLine::ForCurrentProcess()->AppendArguments(
       CommandLine(argc, &argv[0]), false);
 
-  ScopedMainEntryLogger scoped_main_entry_logger;
+  NativeTestUtil::ScopedMainEntryLogger scoped_main_entry_logger;
   main(argc, &argv[0]);
 }