Fix local reference leak in OpenApkAsset.

base/android/apk_assets.cc

Index: base/android/apk_assets.cc
diff --git a/base/android/apk_assets.cc b/base/android/apk_assets.cc
index bcdac6db6ecaca5a908eee7f265321ee71477dd9..fab7fd017f49d316e81e5de08331a669414e0dc0 100644
--- a/base/android/apk_assets.cc
+++ b/base/android/apk_assets.cc
@@ -26,7 +26,7 @@ int OpenApkAsset(const std::string& file_path,
   ScopedJavaLocalRef<jlongArray> jarr = Java_ApkAssets_open(
       env,
       base::android::GetApplicationContext(),
-      base::android::ConvertUTF8ToJavaString(env, file_path).Release());
+      base::android::ConvertUTF8ToJavaString(env, file_path).obj());
   std::vector<jlong> results;
   base::android::JavaLongArrayToLongVector(env, jarr.obj(), &results);
   CHECK_EQ(3U, results.size());