Stop relying on using statements in the JNI generator.

base/android/jni_generator/testFromJavaP.golden

Index: base/android/jni_generator/testFromJavaP.golden
diff --git a/base/android/jni_generator/testFromJavaP.golden b/base/android/jni_generator/testFromJavaP.golden
index 18e10820b5cf1bffa22e2b5e319b0d3b84559130..9b7ba654218d11ec13f408217ec69d7e3b2dde31 100644
--- a/base/android/jni_generator/testFromJavaP.golden
+++ b/base/android/jni_generator/testFromJavaP.golden
@@ -221,9 +221,10 @@ static jlong Java_InputStream_skip(JNIEnv* env, jobject obj, jlong p0) {
 }
 
 static base::subtle::AtomicWord g_InputStream_Constructor = 0;
-static ScopedJavaLocalRef<jobject> Java_InputStream_Constructor(JNIEnv* env)
-    __attribute__ ((unused));
-static ScopedJavaLocalRef<jobject> Java_InputStream_Constructor(JNIEnv* env) {
+static base::android::ScopedJavaLocalRef<jobject>
+    Java_InputStream_Constructor(JNIEnv* env) __attribute__ ((unused));
+static base::android::ScopedJavaLocalRef<jobject>
+    Java_InputStream_Constructor(JNIEnv* env) {
   CHECK_CLAZZ(env, InputStream_clazz(env),
       InputStream_clazz(env), NULL);
   jmethodID method_id =
@@ -238,7 +239,7 @@ static ScopedJavaLocalRef<jobject> Java_InputStream_Constructor(JNIEnv* env) {
       env->NewObject(InputStream_clazz(env),
           method_id);
   jni_generator::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
+  return base::android::ScopedJavaLocalRef<jobject>(env, ret);
 }
 
 // Step 3: RegisterNatives.