1 files changed, 28 insertions, 23 deletions

diff --git a/webkit/glue/plugins/webplugin_delegate_impl_win.cc b/webkit/glue/plugins/webplugin_delegate_impl_win.cc
index 1f13cf8..9d8ed45 100644
--- a/webkit/glue/plugins/webplugin_delegate_impl_win.cc
+++ b/webkit/glue/plugins/webplugin_delegate_impl_win.cc
@@ -326,35 +326,40 @@ void WebPluginDelegateImpl::PluginDestroyed() {
 
 void WebPluginDelegateImpl::PlatformInitialize() {
   plugin_->SetWindow(windowed_handle_);
-  if (windowless_) {
+
+  if (windowless_ && !instance_->plugin_lib()->internal()) {
     CreateDummyWindowForActivation();
     handle_event_pump_messages_event_ = CreateEvent(NULL, TRUE, FALSE, NULL);
     plugin_->SetWindowlessPumpEvent(handle_event_pump_messages_event_);
   }
 
-  // Windowless plugins call the WindowFromPoint API and passes the result of
-  // that to the TrackPopupMenu API call as the owner window. This causes the
-  // API to fail as the API expects the window handle to live on the same thread
-  // as the caller. It works in the other browsers as the plugin lives on the
-  // browser thread. Our workaround is to intercept the TrackPopupMenu API and
-  // replace the window handle with the dummy activation window.
-  if (windowless_ && !g_iat_patch_track_popup_menu.Pointer()->is_patched()) {
-    g_iat_patch_track_popup_menu.Pointer()->Patch(
-        GetPluginPath().value().c_str(), "user32.dll", "TrackPopupMenu",
-        WebPluginDelegateImpl::TrackPopupMenuPatch);
-  }
+  // We cannot patch internal plugins as they are not shared libraries.
+  if (!instance_->plugin_lib()->internal()) {
+    // Windowless plugins call the WindowFromPoint API and passes the result of
+    // that to the TrackPopupMenu API call as the owner window. This causes the
+    // API to fail as the API expects the window handle to live on the same
+    // thread as the caller. It works in the other browsers as the plugin lives
+    // on the browser thread. Our workaround is to intercept the TrackPopupMenu
+    // API and replace the window handle with the dummy activation window.
+    if (windowless_ && !g_iat_patch_track_popup_menu.Pointer()->is_patched()) {
+      g_iat_patch_track_popup_menu.Pointer()->Patch(
+          GetPluginPath().value().c_str(), "user32.dll", "TrackPopupMenu",
+          WebPluginDelegateImpl::TrackPopupMenuPatch);
+    }
 
-  // Windowless plugins can set cursors by calling the SetCursor API. This
-  // works because the thread inputs of the browser UI thread and the plugin
-  // thread are attached. We intercept the SetCursor API for windowless plugins
-  // and remember the cursor being set. This is shipped over to the browser
-  // in the HandleEvent call, which ensures that the cursor does not change
-  // when a windowless plugin instance changes the cursor in a background tab.
-  if (windowless_ && !g_iat_patch_set_cursor.Pointer()->is_patched() &&
-      (quirks_ & PLUGIN_QUIRK_PATCH_SETCURSOR)) {
-    g_iat_patch_set_cursor.Pointer()->Patch(
-        GetPluginPath().value().c_str(), "user32.dll", "SetCursor",
-        WebPluginDelegateImpl::SetCursorPatch);
+    // Windowless plugins can set cursors by calling the SetCursor API. This
+    // works because the thread inputs of the browser UI thread and the plugin
+    // thread are attached. We intercept the SetCursor API for windowless
+    // plugins and remember the cursor being set. This is shipped over to the
+    // browser in the HandleEvent call, which ensures that the cursor does not
+    // change when a windowless plugin instance changes the cursor
+    // in a background tab.
+    if (windowless_ && !g_iat_patch_set_cursor.Pointer()->is_patched() &&
+        (quirks_ & PLUGIN_QUIRK_PATCH_SETCURSOR)) {
+      g_iat_patch_set_cursor.Pointer()->Patch(
+          GetPluginPath().value().c_str(), "user32.dll", "SetCursor",
+          WebPluginDelegateImpl::SetCursorPatch);
+    }
   }
 
   // On XP, WMP will use its old UI unless a registry key under HKLM has the