Coverity: Initialize instance_id_ in the constructor....

chrome/renderer/webplugin_delegate_proxy.cc

 // 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/renderer/webplugin_delegate_proxy.h"
 
 #include <algorithm>
 
 #include "app/gfx/canvas.h"
 #include "app/l10n_util.h"
@@ skipping 145 matching lines @@
 };
 
 WebPluginDelegateProxy::WebPluginDelegateProxy(
     const std::string& mime_type,
     const base::WeakPtr<RenderView>& render_view)
     : render_view_(render_view),
       plugin_(NULL),
       windowless_(false),
       window_(NULL),
       mime_type_(mime_type),
+      instance_id_(MSG_ROUTING_NONE),
       npobject_(NULL),
       window_script_object_(NULL),
       sad_plugin_(NULL),
       invalidate_pending_(false),
       transparent_(false),
       page_url_(render_view_->webview()->GetMainFrame()->url()) {
 }
 
 WebPluginDelegateProxy::~WebPluginDelegateProxy() {
 }
@@ skipping 888 matching lines @@
     intptr_t existing_stream, bool notify_needed, intptr_t notify_data) {
   plugin_->InitiateHTTPRangeRequest(url.c_str(), range_info.c_str(),
                                     existing_stream, notify_needed,
                                     notify_data);
 }
 
 void WebPluginDelegateProxy::OnDeferResourceLoading(int resource_id,
                                                     bool defer) {
   plugin_->SetDeferResourceLoading(resource_id, defer);
 }