Revert of Delete class ScopedPtrCollection. Replaced with vector of unique_ptr.

webrtc/base/scopedptrcollection.h

+/*
+ *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+// Stores a collection of pointers that are deleted when the container is
+// destructed.
+
+#ifndef WEBRTC_BASE_SCOPEDPTRCOLLECTION_H_
+#define WEBRTC_BASE_SCOPEDPTRCOLLECTION_H_
+
+#include <stddef.h>
+
+#include <algorithm>
+#include <vector>
+
+#include "webrtc/base/constructormagic.h"
+
+namespace rtc {
+
+template<class T>
+class ScopedPtrCollection {
+ public:
+  typedef std::vector<T*> VectorT;
+
+  ScopedPtrCollection() { }
+  ~ScopedPtrCollection() {
+    for (typename VectorT::iterator it = collection_.begin();
+         it != collection_.end(); ++it) {
+      delete *it;
+    }
+  }
+
+  const VectorT& collection() const { return collection_; }
+  void Reserve(size_t size) {
+    collection_.reserve(size);
+  }
+  void PushBack(T* t) {
+    collection_.push_back(t);
+  }
+
+  // Remove |t| from the collection without deleting it.
+  void Remove(T* t) {
+    collection_.erase(std::remove(collection_.begin(), collection_.end(), t),
+                      collection_.end());
+  }
+
+ private:
+  VectorT collection_;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(ScopedPtrCollection);
+};
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_SCOPEDPTRCOLLECTION_H_