diff --git a/atom/common/api/atom_api_id_weak_map.cc b/atom/common/api/atom_api_id_weak_map.cc
index 0d3ddae3cc09..1669f25373c9 100644
--- a/atom/common/api/atom_api_id_weak_map.cc
+++ b/atom/common/api/atom_api_id_weak_map.cc
@@ -36,10 +36,6 @@ void IDWeakMap::Remove(int32_t id) {
   id_weak_map_.Remove(id);
 }
 
-void IDWeakMap::Clear() {
-  id_weak_map_.Clear();
-}
-
 // static
 void IDWeakMap::BuildPrototype(v8::Isolate* isolate,
                                v8::Local<v8::ObjectTemplate> prototype) {
@@ -47,8 +43,7 @@ void IDWeakMap::BuildPrototype(v8::Isolate* isolate,
       .SetMethod("set", &IDWeakMap::Set)
       .SetMethod("get", &IDWeakMap::Get)
       .SetMethod("has", &IDWeakMap::Has)
-      .SetMethod("remove", &IDWeakMap::Remove)
-      .SetMethod("clear", &IDWeakMap::Clear);
+      .SetMethod("remove", &IDWeakMap::Remove);
 }
 
 // static
diff --git a/atom/common/api/atom_api_id_weak_map.h b/atom/common/api/atom_api_id_weak_map.h
index 616112ffe6f4..0151c7cea479 100644
--- a/atom/common/api/atom_api_id_weak_map.h
+++ b/atom/common/api/atom_api_id_weak_map.h
@@ -30,7 +30,6 @@ class IDWeakMap : public mate::Wrappable<IDWeakMap> {
   v8::Local<v8::Object> Get(v8::Isolate* isolate, int32_t id);
   bool Has(int32_t id);
   void Remove(int32_t id);
-  void Clear();
 
   atom::IDWeakMap id_weak_map_;
 
diff --git a/atom/common/id_weak_map.cc b/atom/common/id_weak_map.cc
index a78dcbceba53..f7c3f98ea3d3 100644
--- a/atom/common/id_weak_map.cc
+++ b/atom/common/id_weak_map.cc
@@ -59,14 +59,6 @@ bool IDWeakMap::Has(int32_t id) const {
   return map_.find(id) != map_.end();
 }
 
-std::vector<int32_t> IDWeakMap::Keys() const {
-  std::vector<int32_t> keys;
-  keys.reserve(map_.size());
-  for (const auto& iter : map_)
-    keys.emplace_back(iter.first);
-  return keys;
-}
-
 std::vector<v8::Local<v8::Object>> IDWeakMap::Values(v8::Isolate* isolate) {
   std::vector<v8::Local<v8::Object>> keys;
   keys.reserve(map_.size());
@@ -83,10 +75,6 @@ void IDWeakMap::Remove(int32_t id) {
     map_.erase(iter);
 }
 
-void IDWeakMap::Clear() {
-  map_.clear();
-}
-
 int32_t IDWeakMap::GetNextID() {
   return ++next_id_;
 }
diff --git a/atom/common/id_weak_map.h b/atom/common/id_weak_map.h
index 72c64c6ae5d4..f92270573fa6 100644
--- a/atom/common/id_weak_map.h
+++ b/atom/common/id_weak_map.h
@@ -31,18 +31,12 @@ class IDWeakMap {
   // Whethere there is an object with |id| in this WeakMap.
   bool Has(int32_t id) const;
 
-  // Returns IDs of all available objects.
-  std::vector<int32_t> Keys() const;
-
   // Returns all objects.
   std::vector<v8::Local<v8::Object>> Values(v8::Isolate* isolate);
 
   // Remove object with |id| in the WeakMap.
   void Remove(int32_t key);
 
-  // Clears the weak map.
-  void Clear();
-
  private:
   // Returns next available ID.
   int32_t GetNextID();