Move EventBindings to //extensions

chrome/common/extensions/value_counter.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/common/extensions/value_counter.h"
-
-#include "base/values.h"
-
-#include <algorithm>
-
-namespace extensions {
-
-ValueCounter::ValueCounter() {
-}
-
-ValueCounter::~ValueCounter() {
-}
-
-ValueCounter::Entry::Entry(const base::Value& value)
-    : value_(value.DeepCopy()),
-      count_(1) {
-}
-
-ValueCounter::Entry::~Entry() {
-}
-
-int ValueCounter::Entry::Increment() {
-  return ++count_;
-}
-
-int ValueCounter::Entry::Decrement() {
-  return --count_;
-}
-
-int ValueCounter::Add(const base::Value& value) {
-  return AddImpl(value, true);
-}
-
-int ValueCounter::Remove(const base::Value& value) {
-  for (EntryList::iterator it = entries_.begin(); it != entries_.end(); it++) {
-    (*it)->value()->GetType();
-    if ((*it)->value()->Equals(&value)) {
-      int remaining = (*it)->Decrement();
-      if (remaining == 0) {
-        std::swap(*it, entries_.back());
-        entries_.pop_back();
-      }
-      return remaining;
-    }
-  }
-  return 0;
-}
-
-int ValueCounter::AddIfMissing(const base::Value& value) {
-  return AddImpl(value, false);
-}
-
-int ValueCounter::AddImpl(const base::Value& value, bool increment) {
-  for (EntryList::iterator it = entries_.begin(); it != entries_.end(); it++) {
-    if ((*it)->value()->Equals(&value))
-      return increment ? (*it)->Increment() : (*it)->count();
-  }
-  entries_.push_back(linked_ptr<Entry>(new Entry(value)));
-  return 1;
-}
-
-}  // namespace extensions