Remove Gears from Chrome

chrome/browser/chrome_plugin_browsing_context.cc

-// Copyright (c) 2011 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/chrome_plugin_browsing_context.h"
-
-#include "base/message_loop.h"
-#include "base/singleton.h"
-#include "content/browser/browser_thread.h"
-#include "content/common/notification_service.h"
-
-CPBrowsingContextManager* CPBrowsingContextManager::GetInstance() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  return Singleton<CPBrowsingContextManager>::get();
-}
-
-CPBrowsingContextManager::CPBrowsingContextManager() {
-  registrar_.Add(this, NotificationType::URL_REQUEST_CONTEXT_RELEASED,
-                 NotificationService::AllSources());
-}
-
-CPBrowsingContextManager::~CPBrowsingContextManager() {
-}
-
-CPBrowsingContext CPBrowsingContextManager::Allocate(
-    net::URLRequestContext* context) {
-  int32 map_id = map_.Add(context);
-  return static_cast<CPBrowsingContext>(map_id);
-}
-
-net::URLRequestContext* CPBrowsingContextManager::ToURLRequestContext(
-    CPBrowsingContext id) {
-  return map_.Lookup(static_cast<int32>(id));
-}
-
-CPBrowsingContext CPBrowsingContextManager::Lookup(
-    net::URLRequestContext* context) {
-  ReverseMap::const_iterator it = reverse_map_.find(context);
-  if (it == reverse_map_.end()) {
-    CPBrowsingContext id = Allocate(context);
-    reverse_map_[context] = id;
-    return id;
-  } else {
-    return it->second;
-  }
-}
-
-void CPBrowsingContextManager::Observe(NotificationType type,
-                                       const NotificationSource& source,
-                                       const NotificationDetails& details) {
-  DCHECK(type == NotificationType::URL_REQUEST_CONTEXT_RELEASED);
-
-  net::URLRequestContext* context =
-      Source<net::URLRequestContext>(source).ptr();
-
-  // Multiple CPBrowsingContexts may refer to the same net::URLRequestContext.
-  for (Map::iterator it(&map_); !it.IsAtEnd(); it.Advance()) {
-    if (it.GetCurrentValue() == context)
-      map_.Remove(it.GetCurrentKey());
-  }
-
-  reverse_map_.erase(context);
-}