diff --git a/webrtc/system_wrappers/include/field_trial.h b/webrtc/system_wrappers/include/field_trial.h
index d649191563..b94be2cf11 100644
--- a/webrtc/system_wrappers/include/field_trial.h
+++ b/webrtc/system_wrappers/include/field_trial.h
@@ -64,7 +64,10 @@ std::string FindFullName(const std::string& name);
 
 // Convenience method, returns true iff FindFullName(name) return a string that
 // starts with "Enabled".
-bool IsEnabled(const char* name);
+// TODO(tommi): Make sure all implementations support this.
+inline bool IsEnabled(const char* name) {
+  return FindFullName(name).find("Enabled") == 0;
+}
 
 }  // namespace field_trial
 }  // namespace webrtc
diff --git a/webrtc/system_wrappers/source/field_trial_default.cc b/webrtc/system_wrappers/source/field_trial_default.cc
index e5ed2476ab..0e2c286117 100644
--- a/webrtc/system_wrappers/source/field_trial_default.cc
+++ b/webrtc/system_wrappers/source/field_trial_default.cc
@@ -53,10 +53,6 @@ std::string FindFullName(const std::string& name) {
   return std::string();
 }
 
-bool IsEnabled(const char* name) {
-  return FindFullName(name).find("Enabled") == 0;
-}
-
 // Optionally initialize field trial from a string.
 void InitFieldTrialsFromString(const char* trials_string) {
   trials_init_string = trials_string;