Update to Chromium //base at Chromium commit 3e81715e6d3a4324362635aea46ce1f1a163cca1.

android/field_trial_list.cc

Index: android/field_trial_list.cc
diff --git a/android/field_trial_list.cc b/android/field_trial_list.cc
index 9cb38d2910624e7b4ce529d71503c7c935581ab2..3ff3811b0b7b730f1630dbd4162154af91b209e4 100644
--- a/android/field_trial_list.cc
+++ b/android/field_trial_list.cc
@@ -13,13 +13,12 @@
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF8ToJavaString;
 
-static jstring FindFullName(JNIEnv* env,
-                            jclass clazz,
-                            jstring jtrial_name) {
+static ScopedJavaLocalRef<jstring> FindFullName(JNIEnv* env,
+                                                jclass clazz,
+                                                jstring jtrial_name) {
   std::string trial_name(ConvertJavaStringToUTF8(env, jtrial_name));
   return ConvertUTF8ToJavaString(
-      env,
-      base::FieldTrialList::FindFullName(trial_name)).Release();
+      env, base::FieldTrialList::FindFullName(trial_name));
 }
 
 static jboolean TrialExists(JNIEnv* env, jclass clazz, jstring jtrial_name) {