Fix a crash in plugin handling. The code was destroying the passed-in cairo_t...

webkit/glue/plugins/webplugin_delegate_impl_gtk.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 "webkit/glue/plugins/webplugin_delegate_impl.h"
 
 #include <string>
 #include <vector>
 
 #include <gtk/gtk.h>
@@ skipping 539 matching lines @@
   StatsScope<StatsRate> scope(plugin_paint);
   NPError err = instance()->NPP_HandleEvent(&np_event);
   DCHECK_EQ(err, NPERR_NO_ERROR);
 
   // Now copy the rendered image pixmap back into the drawing buffer.
   gdk_cairo_set_source_pixmap(context, pixmap_, -offset_x, -offset_y);
   cairo_rectangle(context, draw_rect.x(), draw_rect.y(),
                   draw_rect.width(), draw_rect.height());
   cairo_clip(context);
   cairo_paint(context);
-  cairo_destroy(context);

[Evan Martin, 2009/07/18 00:51:41]

i apologize for this code, it makes absolutely no sense now that i look at it
harder

 
 #ifdef DEBUG_RECTANGLES
   // Draw some debugging rectangles.
   // Pixmap rect = blue.
   DrawDebugRectangle(context, pixmap_rect, 0, 0, 1);
   // Drawing rect = red.
   DrawDebugRectangle(context, draw_rect, 1, 0, 0);
 #endif
 }
 
@@ skipping 274 matching lines @@
   return stream;
 }
 
 void WebPluginDelegateImpl::URLRequestRouted(const std::string&url,
                                              bool notify_needed,
                                              intptr_t notify_data) {
   if (notify_needed) {
     instance()->SetURLLoadData(GURL(url.c_str()), notify_data);
   }
 }