4 files changed, 9 insertions, 2 deletions
diff --git a/base/field_trial.cc b/base/field_trial.cc
index 3575001..a3e6ac6 100644
--- a/base/field_trial.cc
+++ b/base/field_trial.cc
@@ -64,6 +64,8 @@ std::string FieldTrial::MakeName(const std::string& name_prefix,
   return big_string.append(FieldTrialList::FindFullName(trial_name));
 }
 
+FieldTrial::~FieldTrial() {}
+
 //------------------------------------------------------------------------------
 // FieldTrialList methods and members.
 
diff --git a/base/field_trial.h b/base/field_trial.h
index b1f0a07..deee838 100644
--- a/base/field_trial.h
+++ b/base/field_trial.h
@@ -119,7 +119,7 @@ class FieldTrial : public base::RefCounted<FieldTrial> {
  private:
   friend class base::RefCounted<FieldTrial>;
 
-  ~FieldTrial() {}
+  virtual ~FieldTrial();
 
   // The name of the field trial, as can be found via the FieldTrialList.
   // This is empty of the trial is not in the experiment.
diff --git a/base/global_descriptors_posix.cc b/base/global_descriptors_posix.cc
index 869d196..8c853a0 100644
--- a/base/global_descriptors_posix.cc
+++ b/base/global_descriptors_posix.cc
@@ -11,6 +11,10 @@
 
 namespace base {
 
+GlobalDescriptors::GlobalDescriptors() {}
+
+GlobalDescriptors::~GlobalDescriptors() {}
+
 int GlobalDescriptors::MaybeGet(Key key) const {
   for (Mapping::const_iterator
        i = descriptors_.begin(); i != descriptors_.end(); ++i) {
diff --git a/base/global_descriptors_posix.h b/base/global_descriptors_posix.h
index c37dae6..8ea743e 100644
--- a/base/global_descriptors_posix.h
+++ b/base/global_descriptors_posix.h
@@ -56,7 +56,8 @@ class GlobalDescriptors {
   }
 
  private:
-  GlobalDescriptors() { }
+  GlobalDescriptors();
+  ~GlobalDescriptors();
   friend struct DefaultSingletonTraits<GlobalDescriptors>;
 
   Mapping descriptors_;