More speedup of scrolling when many windowed plugins in a page. Scrolling is...

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"
@@ skipping 21 matching lines @@
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/plugin_messages.h"
 #include "chrome/common/process_watcher.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/win_util.h"
 #include "net/base/cookie_monster.h"
 #include "net/proxy/proxy_service.h"
 #include "net/url_request/url_request.h"
 #include "sandbox/src/sandbox.h"
+#include "webkit/glue/plugins/plugin_constants_win.h"
 
 static const char kDefaultPluginFinderURL[] =
     "http://dl.google.com/chrome/plugins/plugins2.xml";
 
 // The NotificationTask is used to notify about plugin process connection/
 // disconnection. It is needed because the notifications in the
 // NotificationService must happen in the main thread.
 class PluginNotificationTask : public Task {
  public:
   PluginNotificationTask(NotificationType notification_type,
@@ skipping 330 matching lines @@
       wcex.cbSize         = sizeof(WNDCLASSEX);
       wcex.style          = CS_DBLCLKS;
       wcex.lpfnWndProc    = DefWindowProc;
       wcex.cbClsExtra     = 0;
       wcex.cbWndExtra     = 0;
       wcex.hInstance      = GetModuleHandle(NULL);
       wcex.hIcon          = 0;
       wcex.hCursor        = 0;
       wcex.hbrBackground  = reinterpret_cast<HBRUSH>(COLOR_WINDOW+1);
       wcex.lpszMenuName   = 0;
-      wcex.lpszClassName  = L"NativeWindowClassWrapper";
+      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);
 
@@ skipping 528 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);
 }