Merge Chromium src@r53293

Change-Id: Ia79acf8670f385cee48c45b0a75371d8e950af34

1 files changed, 52 insertions, 0 deletions

diff --git a/chrome/browser/automation/automation_provider_list.cc b/chrome/browser/automation/automation_provider_list.cc
new file mode 100644
index 0000000..6676626
--- /dev/null
+++ b/chrome/browser/automation/automation_provider_list.cc
@@ -0,0 +1,52 @@
+// Copyright (c) 2006-2008 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/browser/automation/automation_provider_list.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "chrome/browser/automation/automation_provider.h"
+#include "chrome/browser/browser_process.h"
+
+AutomationProviderList* AutomationProviderList::instance_ = NULL;
+
+AutomationProviderList::AutomationProviderList() {
+}
+
+AutomationProviderList::~AutomationProviderList() {
+  iterator iter = automation_providers_.begin();
+  while (iter != automation_providers_.end()) {
+    (*iter)->Release();
+    iter = automation_providers_.erase(iter);
+  }
+  instance_ = NULL;
+}
+
+bool AutomationProviderList::AddProvider(AutomationProvider* provider) {
+  provider->AddRef();
+  automation_providers_.push_back(provider);
+  return true;
+}
+
+bool AutomationProviderList::RemoveProvider(AutomationProvider* provider) {
+  const iterator remove_provider =
+    find(automation_providers_.begin(), automation_providers_.end(), provider);
+  if (remove_provider != automation_providers_.end()) {
+    (*remove_provider)->Release();
+    automation_providers_.erase(remove_provider);
+    if (automation_providers_.empty())
+      OnLastProviderRemoved();
+    return true;
+  }
+  return false;
+}
+
+AutomationProviderList* AutomationProviderList::GetInstance() {
+  if (!instance_) {
+    instance_ = new AutomationProviderList;
+  }
+  DCHECK(NULL != instance_);
+  return instance_;
+}