jni: Remove no-longer-needed calls to NewLocalRef.

We no longer need to explicitly create new local references to put into
ScopedJavaLocalRef to avoid JNI warnings; we can just pass JavaParamRefs
around safely now. Remove temporary fixes added in
https://codereview.chromium.org/1278823006 and do that instead.

BUG=506850

Review URL: https://codereview.chromium.org/1324453006

Cr-Commit-Position: refs/heads/master@{#347396}

content/app/android/child_process_service.cc

@@ -38,7 +38,7 @@ class SurfaceTextureManagerImpl : public SurfaceTextureManager,
   // |service| is the instance of
   // org.chromium.content.app.ChildProcessService.
   explicit SurfaceTextureManagerImpl(
-      const base::android::ScopedJavaLocalRef<jobject>& service)
+      const base::android::JavaRef<jobject>& service)
       : service_(service) {
     SurfaceTexturePeer::InitInstance(this);
     GpuSurfaceLookup::InitInstance(this);
@@ -132,13 +132,9 @@ class SurfaceTextureManagerImpl : public SurfaceTextureManager,
 // Chrome actually uses the renderer code path for all of its child
 // processes such as renderers, plugins, etc.
 void InternalInitChildProcess(JNIEnv* env,
-                              jclass clazz,
-                              jobject service_in,
+                              const JavaParamRef<jobject>& service,
                               jint cpu_count,
                               jlong cpu_features) {
-  base::android::ScopedJavaLocalRef<jobject> service(
-      env, env->NewLocalRef(service_in));
-
   // Set the CPU properties.
   android_setCpu(cpu_count, cpu_features);
   SurfaceTextureManager::SetInstance(new SurfaceTextureManagerImpl(service));
@@ -163,7 +159,7 @@ void InitChildProcess(JNIEnv* env,
                       const JavaParamRef<jobject>& service,
                       jint cpu_count,
                       jlong cpu_features) {
-  InternalInitChildProcess(env, clazz, service, cpu_count, cpu_features);
+  InternalInitChildProcess(env, service, cpu_count, cpu_features);
 }
 
 void ExitChildProcess(JNIEnv* env, const JavaParamRef<jclass>& clazz) {

content/app/android/content_main.cc

@@ -31,9 +31,7 @@ LazyInstance<scoped_ptr<ContentMainDelegate> > g_content_main_delegate =
 static void InitApplicationContext(JNIEnv* env,
                                    const JavaParamRef<jclass>& clazz,
                                    const JavaParamRef<jobject>& context) {
-  base::android::ScopedJavaLocalRef<jobject> scoped_context(
-      env, env->NewLocalRef(context));
-  base::android::InitApplicationContext(env, scoped_context);
+  base::android::InitApplicationContext(env, context);
 }
 
 static jint Start(JNIEnv* env, const JavaParamRef<jclass>& clazz) {

testing/android/native_test/native_test_launcher.cc

@@ -81,9 +81,7 @@ static void RunTests(JNIEnv* env,
   base::CommandLine::Init(arraysize(kInitialArgv), kInitialArgv);
 
   // Set the application context in base.
-  base::android::ScopedJavaLocalRef<jobject> scoped_context(
-      env, env->NewLocalRef(app_context));
-  base::android::InitApplicationContext(env, scoped_context);
+  base::android::InitApplicationContext(env, app_context);
   base::android::RegisterJni(env);
 
   std::vector<std::string> args;