Browser Plugin: Allocate Instance IDs in BrowserPluginEmbedder instead of BrowserPluginManager

content/renderer/browser_plugin/browser_plugin_manager.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 "content/renderer/browser_plugin/browser_plugin_manager.h"
 
 #include "base/lazy_instance.h"
 #include "base/threading/thread_local.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/renderer/browser_plugin/browser_plugin.h"
 #include "content/renderer/browser_plugin/browser_plugin_manager_factory.h"
 #include "content/renderer/browser_plugin/browser_plugin_manager_impl.h"
 
 namespace content {
 
 // static
 BrowserPluginManagerFactory* BrowserPluginManager::factory_ = NULL;
 
 BrowserPluginManager* BrowserPluginManager::Create(
     RenderViewImpl* render_view) {
   if (factory_)
     return factory_->CreateBrowserPluginManager(render_view);
   return new BrowserPluginManagerImpl(render_view);
 }
 
 BrowserPluginManager::BrowserPluginManager(RenderViewImpl* render_view)
     : RenderViewObserver(render_view),
-      render_view_(render_view->AsWeakPtr()),
-      browser_plugin_counter_(0) {
+      render_view_(render_view->AsWeakPtr()) {
 }
 
 BrowserPluginManager::~BrowserPluginManager() {
 }
 
 void BrowserPluginManager::AddBrowserPlugin(
     int instance_id,
     BrowserPlugin* browser_plugin) {
   instances_.AddWithID(browser_plugin, instance_id);
 }
 
 void BrowserPluginManager::RemoveBrowserPlugin(int instance_id) {
   instances_.Remove(instance_id);
 }
 
 BrowserPlugin* BrowserPluginManager::GetBrowserPlugin(int instance_id) const {
   return instances_.Lookup(instance_id);
 }
 
 void BrowserPluginManager::UpdateFocusState() {
   IDMap<BrowserPlugin>::iterator iter(&instances_);
   while (!iter.IsAtEnd()) {
     iter.GetCurrentValue()->UpdateGuestFocusState();
     iter.Advance();
   }
 }
 
 }  // namespace content