Adding tracking of HWND creation/destruction

chrome/browser/plugin_process_host.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/browser/plugin_process_host.h"
 
 #include <windows.h>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/debug_util.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/thread.h"
+#include "base/win_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_plugin_browsing_context.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/plugin_process_info.h"
 #include "chrome/browser/plugin_service.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/sandbox_policy.h"
@@ skipping 317 matching lines @@
       wcex.lpszClassName  = kWrapperNativeWindowClassName;
       wcex.hIconSm        = 0;
       window_class = RegisterClassEx(&wcex);
     }
 
     HWND window = CreateWindowEx(
         WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
         MAKEINTATOM(window_class), 0,
         WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
         0, 0, 0, 0, parent_, 0, GetModuleHandle(NULL), 0);
+    TRACK_HWND_CREATION(window);
 
     PluginProcessHostMsg_CreateWindow::WriteReplyParams(
         reply_msg_, window);
 
     g_browser_process->io_thread()->message_loop()->PostTask(
         FROM_HERE, new SendReplyTask(plugin_path_, reply_msg_));
   }
 
  private:
   FilePath plugin_path_;
   HWND parent_;
   IPC::Message* reply_msg_;
 };
 
 // Destroys the given window on the UI thread.
 class DestroyWindowTask : public Task {
  public:
   DestroyWindowTask(HWND window) : window_(window) { }
 
   virtual void Run() {
     DestroyWindow(window_);
+    TRACK_HWND_DESTRUCTION(window_);
   }
 
  private:
   HWND window_;
 };
 
 
 PluginProcessHost::PluginProcessHost(PluginService* plugin_service)
     : process_(NULL),
       opening_channel_(false),
@@ skipping 503 matching lines @@
 void PluginProcessHost::OnDestroyWindow(HWND window) {
   plugin_service_->main_message_loop()->PostTask(FROM_HERE,
       new DestroyWindowTask(window));
 }
 
 void PluginProcessHost::Shutdown() {
 
   Send(new PluginProcessMsg_BrowserShutdown);
 }