jni_generator: Pass object parameters as JavaParamRef.

mojo/runner/android/main.cc

Index: mojo/runner/android/main.cc
diff --git a/mojo/runner/android/main.cc b/mojo/runner/android/main.cc
index 8f4db82ffc2cbebbd69aacef3cf8e7ac380b22d0..b5717cca784c63495f2e58aa454a2378a6b21ba4 100644
--- a/mojo/runner/android/main.cc
+++ b/mojo/runner/android/main.cc
@@ -99,12 +99,12 @@ void InitializeRedirection() {
 }  // namespace
 
 static void Init(JNIEnv* env,
-                 jclass clazz,
-                 jobject activity,
-                 jstring mojo_shell_path,
-                 jobjectArray jparameters,
-                 jstring j_local_apps_directory,
-                 jstring j_tmp_dir) {
+                 const JavaParamRef<jclass>& clazz,
+                 const JavaParamRef<jobject>& activity,
+                 const JavaParamRef<jstring>& mojo_shell_path,
+                 const JavaParamRef<jobjectArray>& jparameters,
+                 const JavaParamRef<jstring>& j_local_apps_directory,
+                 const JavaParamRef<jstring>& j_tmp_dir) {
   g_main_activiy.Get().Reset(env, activity);
 
   // Setting the TMPDIR environment variable so that applications can use it.
@@ -155,7 +155,7 @@ static void Init(JNIEnv* env,
   gfx::GLSurface::InitializeOneOff();
 }
 
-static void Start(JNIEnv* env, jclass clazz) {
+static void Start(JNIEnv* env, const JavaParamRef<jclass>& clazz) {
 #if defined(MOJO_SHELL_DEBUG_URL)
   base::CommandLine::ForCurrentProcess()->AppendArg(MOJO_SHELL_DEBUG_URL);
   // Sleep for 5 seconds to give the debugger a chance to attach.
@@ -166,7 +166,9 @@ static void Start(JNIEnv* env, jclass clazz) {
   context->RunCommandLineApplication(base::Bind(ExitShell));
 }
 
-static void AddApplicationURL(JNIEnv* env, jclass clazz, jstring jurl) {
+static void AddApplicationURL(JNIEnv* env,
+                              const JavaParamRef<jclass>& clazz,
+                              const JavaParamRef<jstring>& jurl) {
   base::CommandLine::ForCurrentProcess()->AppendArg(
       base::android::ConvertJavaStringToUTF8(env, jurl));
 }