Add support for TraceEvent before the native library is loaded.

base/android/jni_array.h

Index: base/android/jni_array.h
diff --git a/base/android/jni_array.h b/base/android/jni_array.h
index 0d7ec2ea03b28017e9cddeb42f1658a8a1c5fc94..13de1463decd5ab411aee22883b7b49b68c18b3f 100644
--- a/base/android/jni_array.h
+++ b/base/android/jni_array.h
@@ -61,6 +61,12 @@ BASE_EXPORT void AppendJavaByteArrayToByteVector(
     jbyteArray byte_array,
     std::vector<uint8>* out);
 
+// Appends the Java longs in |longs_array| onto the end of |out|.
+BASE_EXPORT void AppendJavaLongArrayToLongVector(
+    JNIEnv* env,
+    jlongArray long_array,
+    std::vector<int64_t>* out);
+
 // Replaces the content of |out| with the Java bytes in |bytes_array|.
 BASE_EXPORT void JavaByteArrayToByteVector(
     JNIEnv* env,